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Finding the Fourth Proportional to 361,640.04, 542,385.84 and 136,923.12

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Solution

The fourth proportional to 361,640.04, 542,385.84 and 136,923.12 is: 205,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,640.04 : 542,385.84 = 136,923.12 : x
  2. Step 2: Convert to fraction form
    361,640.04/542,385.84 = 136,923.12/x
  3. Step 3: Cross multiply
    361,640.04x = 542,385.84 × 136,923.12
  4. Step 4: Simplify right side
    361,640.04x = 74,265,161,456.62
  5. Step 5: Solve for x
    x = 74,265,161,456.62/361,640.04
  6. Step 6: Final answer
    x = 205,356.58

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1.5x scale

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.