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Finding the Fourth Proportional to 498,859.61, 748,095.29 and 161,818.76

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Solution

The fourth proportional to 498,859.61, 748,095.29 and 161,818.76 is: 242,665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,859.61 : 748,095.29 = 161,818.76 : x
  2. Step 2: Convert to fraction form
    498,859.61/748,095.29 = 161,818.76/x
  3. Step 3: Cross multiply
    498,859.61x = 748,095.29 × 161,818.76
  4. Step 4: Simplify right side
    498,859.61x = 121,055,854,767.84
  5. Step 5: Solve for x
    x = 121,055,854,767.84/498,859.61
  6. Step 6: Final answer
    x = 242,665.18

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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.