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Finding the Fourth Proportional to 156,750.90, 234,867.15 and 133,422.90

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Solution

The fourth proportional to 156,750.90, 234,867.15 and 133,422.90 is: 199,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,750.90 : 234,867.15 = 133,422.90 : x
  2. Step 2: Convert to fraction form
    156,750.90/234,867.15 = 133,422.90/x
  3. Step 3: Cross multiply
    156,750.90x = 234,867.15 × 133,422.90
  4. Step 4: Simplify right side
    156,750.90x = 31,336,656,267.74
  5. Step 5: Solve for x
    x = 31,336,656,267.74/156,750.90
  6. Step 6: Final answer
    x = 199,913.72

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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.