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Finding the Fourth Proportional to 156,734.40, 235,101.60 and 133,114.80

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Solution

The fourth proportional to 156,734.40, 235,101.60 and 133,114.80 is: 199,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.40 : 235,101.60 = 133,114.80 : x
  2. Step 2: Convert to fraction form
    156,734.40/235,101.60 = 133,114.80/x
  3. Step 3: Cross multiply
    156,734.40x = 235,101.60 × 133,114.80
  4. Step 4: Simplify right side
    156,734.40x = 31,295,502,463.68
  5. Step 5: Solve for x
    x = 31,295,502,463.68/156,734.40
  6. Step 6: Final answer
    x = 199,672.20

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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.