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Finding the Fourth Proportional to 361,617.80, 542,426.70 and 98,961.80

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Solution

The fourth proportional to 361,617.80, 542,426.70 and 98,961.80 is: 148,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,617.80 : 542,426.70 = 98,961.80 : x
  2. Step 2: Convert to fraction form
    361,617.80/542,426.70 = 98,961.80/x
  3. Step 3: Cross multiply
    361,617.80x = 542,426.70 × 98,961.80
  4. Step 4: Simplify right side
    361,617.80x = 53,679,522,600.06
  5. Step 5: Solve for x
    x = 53,679,522,600.06/361,617.80
  6. Step 6: Final answer
    x = 148,442.70

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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.