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Finding the Fourth Proportional to 312,179.50, 468,079.63 and 122,412.52

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Solution

The fourth proportional to 312,179.50, 468,079.63 and 122,412.52 is: 183,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,179.50 : 468,079.63 = 122,412.52 : x
  2. Step 2: Convert to fraction form
    312,179.50/468,079.63 = 122,412.52/x
  3. Step 3: Cross multiply
    312,179.50x = 468,079.63 × 122,412.52
  4. Step 4: Simplify right side
    312,179.50x = 57,298,804,728.57
  5. Step 5: Solve for x
    x = 57,298,804,728.57/312,179.50
  6. Step 6: Final answer
    x = 183,544.42

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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.