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Finding the Fourth Proportional to 114,712.10, 172,068.15 and 88,468.10

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Solution

The fourth proportional to 114,712.10, 172,068.15 and 88,468.10 is: 132,702.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,712.10 : 172,068.15 = 88,468.10 : x
  2. Step 2: Convert to fraction form
    114,712.10/172,068.15 = 88,468.10/x
  3. Step 3: Cross multiply
    114,712.10x = 172,068.15 × 88,468.10
  4. Step 4: Simplify right side
    114,712.10x = 15,222,542,301.02
  5. Step 5: Solve for x
    x = 15,222,542,301.02/114,712.10
  6. Step 6: Final answer
    x = 132,702.15

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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.