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Finding the Fourth Proportional to 312,215.37, 468,323.08 and 75,558.07

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Solution

The fourth proportional to 312,215.37, 468,323.08 and 75,558.07 is: 113,337.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,215.37 : 468,323.08 = 75,558.07 : x
  2. Step 2: Convert to fraction form
    312,215.37/468,323.08 = 75,558.07/x
  3. Step 3: Cross multiply
    312,215.37x = 468,323.08 × 75,558.07
  4. Step 4: Simplify right side
    312,215.37x = 35,385,588,061.26
  5. Step 5: Solve for x
    x = 35,385,588,061.26/312,215.37
  6. Step 6: Final answer
    x = 113,337.11

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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.