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Finding the Fourth Proportional to 361,989.59, 543,062.43 and 109,248.93

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Solution

The fourth proportional to 361,989.59, 543,062.43 and 109,248.93 is: 163,896.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,989.59 : 543,062.43 = 109,248.93 : x
  2. Step 2: Convert to fraction form
    361,989.59/543,062.43 = 109,248.93/x
  3. Step 3: Cross multiply
    361,989.59x = 543,062.43 × 109,248.93
  4. Step 4: Simplify right side
    361,989.59x = 59,328,989,400.70
  5. Step 5: Solve for x
    x = 59,328,989,400.70/361,989.59
  6. Step 6: Final answer
    x = 163,896.95

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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.