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Finding the Fourth Proportional to 331,818.60, 497,727.90 and 121,607.40

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Solution

The fourth proportional to 331,818.60, 497,727.90 and 121,607.40 is: 182,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,818.60 : 497,727.90 = 121,607.40 : x
  2. Step 2: Convert to fraction form
    331,818.60/497,727.90 = 121,607.40/x
  3. Step 3: Cross multiply
    331,818.60x = 497,727.90 × 121,607.40
  4. Step 4: Simplify right side
    331,818.60x = 60,527,395,826.46
  5. Step 5: Solve for x
    x = 60,527,395,826.46/331,818.60
  6. Step 6: Final answer
    x = 182,411.10

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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.