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Finding the Fourth Proportional to 156,812.60, 234,830.10 and 125,708.60

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Solution

The fourth proportional to 156,812.60, 234,830.10 and 125,708.60 is: 188,251.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,812.60 : 234,830.10 = 125,708.60 : x
  2. Step 2: Convert to fraction form
    156,812.60/234,830.10 = 125,708.60/x
  3. Step 3: Cross multiply
    156,812.60x = 234,830.10 × 125,708.60
  4. Step 4: Simplify right side
    156,812.60x = 29,520,163,108.86
  5. Step 5: Solve for x
    x = 29,520,163,108.86/156,812.60
  6. Step 6: Final answer
    x = 188,251.22

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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.