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Finding the Fourth Proportional to 368,793.30, 553,288.40 and 132,159.90

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Solution

The fourth proportional to 368,793.30, 553,288.40 and 132,159.90 is: 198,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,793.30 : 553,288.40 = 132,159.90 : x
  2. Step 2: Convert to fraction form
    368,793.30/553,288.40 = 132,159.90/x
  3. Step 3: Cross multiply
    368,793.30x = 553,288.40 × 132,159.90
  4. Step 4: Simplify right side
    368,793.30x = 73,122,541,153.09
  5. Step 5: Solve for x
    x = 73,122,541,153.09/368,793.30
  6. Step 6: Final answer
    x = 198,275.13

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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.