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Finding the Fourth Proportional to 237,059.61, 355,349.17 and 85,211.40

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Solution

The fourth proportional to 237,059.61, 355,349.17 and 85,211.40 is: 127,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,059.61 : 355,349.17 = 85,211.40 : x
  2. Step 2: Convert to fraction form
    237,059.61/355,349.17 = 85,211.40/x
  3. Step 3: Cross multiply
    237,059.61x = 355,349.17 × 85,211.40
  4. Step 4: Simplify right side
    237,059.61x = 30,279,800,264.54
  5. Step 5: Solve for x
    x = 30,279,800,264.54/237,059.61
  6. Step 6: Final answer
    x = 127,730.74

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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.