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Finding the Fourth Proportional to 176,617.13, 243,753.71 and 101,165.63

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Solution

The fourth proportional to 176,617.13, 243,753.71 and 101,165.63 is: 139,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,617.13 : 243,753.71 = 101,165.63 : x
  2. Step 2: Convert to fraction form
    176,617.13/243,753.71 = 101,165.63/x
  3. Step 3: Cross multiply
    176,617.13x = 243,753.71 × 101,165.63
  4. Step 4: Simplify right side
    176,617.13x = 24,659,495,912.39
  5. Step 5: Solve for x
    x = 24,659,495,912.39/176,617.13
  6. Step 6: Final answer
    x = 139,621.21

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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.