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Finding the Fourth Proportional to 394,688.67, 592,106.01 and 124,884.71

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Solution

The fourth proportional to 394,688.67, 592,106.01 and 124,884.71 is: 187,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,688.67 : 592,106.01 = 124,884.71 : x
  2. Step 2: Convert to fraction form
    394,688.67/592,106.01 = 124,884.71/x
  3. Step 3: Cross multiply
    394,688.67x = 592,106.01 × 124,884.71
  4. Step 4: Simplify right side
    394,688.67x = 73,944,987,348.11
  5. Step 5: Solve for x
    x = 73,944,987,348.11/394,688.67
  6. Step 6: Final answer
    x = 187,350.16

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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.