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Finding the Fourth Proportional to 365,557.59, 548,380.13 and 128,851.29

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Solution

The fourth proportional to 365,557.59, 548,380.13 and 128,851.29 is: 193,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,557.59 : 548,380.13 = 128,851.29 : x
  2. Step 2: Convert to fraction form
    365,557.59/548,380.13 = 128,851.29/x
  3. Step 3: Cross multiply
    365,557.59x = 548,380.13 × 128,851.29
  4. Step 4: Simplify right side
    365,557.59x = 70,659,486,516.61
  5. Step 5: Solve for x
    x = 70,659,486,516.61/365,557.59
  6. Step 6: Final answer
    x = 193,292.35

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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.