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Finding the Fourth Proportional to 351,485.28, 527,242.50 and 102,167.28

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Solution

The fourth proportional to 351,485.28, 527,242.50 and 102,167.28 is: 153,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,485.28 : 527,242.50 = 102,167.28 : x
  2. Step 2: Convert to fraction form
    351,485.28/527,242.50 = 102,167.28/x
  3. Step 3: Cross multiply
    351,485.28x = 527,242.50 × 102,167.28
  4. Step 4: Simplify right side
    351,485.28x = 53,866,932,125.40
  5. Step 5: Solve for x
    x = 53,866,932,125.40/351,485.28
  6. Step 6: Final answer
    x = 153,255.16

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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.