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Finding the Fourth Proportional to 239,160.90, 358,785.50 and 98,930.46

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Solution

The fourth proportional to 239,160.90, 358,785.50 and 98,930.46 is: 148,413.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,160.90 : 358,785.50 = 98,930.46 : x
  2. Step 2: Convert to fraction form
    239,160.90/358,785.50 = 98,930.46/x
  3. Step 3: Cross multiply
    239,160.90x = 358,785.50 × 98,930.46
  4. Step 4: Simplify right side
    239,160.90x = 35,494,815,963.61
  5. Step 5: Solve for x
    x = 35,494,815,963.61/239,160.90
  6. Step 6: Final answer
    x = 148,413.96

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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.