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Finding the Fourth Proportional to 113,100, 156,080.04 and 62,117.52

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Solution

The fourth proportional to 113,100, 156,080.04 and 62,117.52 is: 85,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,100 : 156,080.04 = 62,117.52 : x
  2. Step 2: Convert to fraction form
    113,100/156,080.04 = 62,117.52/x
  3. Step 3: Cross multiply
    113,100x = 156,080.04 × 62,117.52
  4. Step 4: Simplify right side
    113,100x = 9,695,305,006.30
  5. Step 5: Solve for x
    x = 9,695,305,006.30/113,100
  6. Step 6: Final answer
    x = 85,723.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.