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Finding the Fourth Proportional to 389,333.76, 584,001.18 and 108,850.74

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Solution

The fourth proportional to 389,333.76, 584,001.18 and 108,850.74 is: 163,276.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,333.76 : 584,001.18 = 108,850.74 : x
  2. Step 2: Convert to fraction form
    389,333.76/584,001.18 = 108,850.74/x
  3. Step 3: Cross multiply
    389,333.76x = 584,001.18 × 108,850.74
  4. Step 4: Simplify right side
    389,333.76x = 63,568,960,603.87
  5. Step 5: Solve for x
    x = 63,568,960,603.87/389,333.76
  6. Step 6: Final answer
    x = 163,276.26

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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.