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Finding the Fourth Proportional to 312,584.50, 468,876.75 and 75,925.59

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Solution

The fourth proportional to 312,584.50, 468,876.75 and 75,925.59 is: 113,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,584.50 : 468,876.75 = 75,925.59 : x
  2. Step 2: Convert to fraction form
    312,584.50/468,876.75 = 75,925.59/x
  3. Step 3: Cross multiply
    312,584.50x = 468,876.75 × 75,925.59
  4. Step 4: Simplify right side
    312,584.50x = 35,599,741,536.65
  5. Step 5: Solve for x
    x = 35,599,741,536.65/312,584.50
  6. Step 6: Final answer
    x = 113,888.38

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.