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Finding the Fourth Proportional to 318,554.92, 477,910.14 and 96,938.92

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Solution

The fourth proportional to 318,554.92, 477,910.14 and 96,938.92 is: 145,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,554.92 : 477,910.14 = 96,938.92 : x
  2. Step 2: Convert to fraction form
    318,554.92/477,910.14 = 96,938.92/x
  3. Step 3: Cross multiply
    318,554.92x = 477,910.14 × 96,938.92
  4. Step 4: Simplify right side
    318,554.92x = 46,328,092,828.65
  5. Step 5: Solve for x
    x = 46,328,092,828.65/318,554.92
  6. Step 6: Final answer
    x = 145,432.04

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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.