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Finding the Fourth Proportional to 96,568.32, 145,128.96 and 47,354.88

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Solution

The fourth proportional to 96,568.32, 145,128.96 and 47,354.88 is: 71,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,568.32 : 145,128.96 = 47,354.88 : x
  2. Step 2: Convert to fraction form
    96,568.32/145,128.96 = 47,354.88/x
  3. Step 3: Cross multiply
    96,568.32x = 145,128.96 × 47,354.88
  4. Step 4: Simplify right side
    96,568.32x = 6,872,564,485.32
  5. Step 5: Solve for x
    x = 6,872,564,485.32/96,568.32
  6. Step 6: Final answer
    x = 71,167.90

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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.