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Finding the Fourth Proportional to 243,517.13, 335,836.10 and 152,881.61

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Solution

The fourth proportional to 243,517.13, 335,836.10 and 152,881.61 is: 210,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,517.13 : 335,836.10 = 152,881.61 : x
  2. Step 2: Convert to fraction form
    243,517.13/335,836.10 = 152,881.61/x
  3. Step 3: Cross multiply
    243,517.13x = 335,836.10 × 152,881.61
  4. Step 4: Simplify right side
    243,517.13x = 51,343,161,220.53
  5. Step 5: Solve for x
    x = 51,343,161,220.53/243,517.13
  6. Step 6: Final answer
    x = 210,840.04

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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.