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Finding the Fourth Proportional to 176,685.86, 243,822.12 and 101,229.50

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Solution

The fourth proportional to 176,685.86, 243,822.12 and 101,229.50 is: 139,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,685.86 : 243,822.12 = 101,229.50 : x
  2. Step 2: Convert to fraction form
    176,685.86/243,822.12 = 101,229.50/x
  3. Step 3: Cross multiply
    176,685.86x = 243,822.12 × 101,229.50
  4. Step 4: Simplify right side
    176,685.86x = 24,681,991,296.54
  5. Step 5: Solve for x
    x = 24,681,991,296.54/176,685.86
  6. Step 6: Final answer
    x = 139,694.21

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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.