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Finding the Fourth Proportional to 156,988.60, 235,094.10 and 125,884.60

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Solution

The fourth proportional to 156,988.60, 235,094.10 and 125,884.60 is: 188,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,988.60 : 235,094.10 = 125,884.60 : x
  2. Step 2: Convert to fraction form
    156,988.60/235,094.10 = 125,884.60/x
  3. Step 3: Cross multiply
    156,988.60x = 235,094.10 × 125,884.60
  4. Step 4: Simplify right side
    156,988.60x = 29,594,726,740.86
  5. Step 5: Solve for x
    x = 29,594,726,740.86/156,988.60
  6. Step 6: Final answer
    x = 188,515.13

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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.