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Finding the Fourth Proportional to 176,608.66, 243,712.54 and 100,132.90

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Solution

The fourth proportional to 176,608.66, 243,712.54 and 100,132.90 is: 138,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,608.66 : 243,712.54 = 100,132.90 : x
  2. Step 2: Convert to fraction form
    176,608.66/243,712.54 = 100,132.90/x
  3. Step 3: Cross multiply
    176,608.66x = 243,712.54 × 100,132.90
  4. Step 4: Simplify right side
    176,608.66x = 24,403,643,396.57
  5. Step 5: Solve for x
    x = 24,403,643,396.57/176,608.66
  6. Step 6: Final answer
    x = 138,179.20

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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.