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Finding the Fourth Proportional to 157,695.60, 236,543.40 and 126,591.60

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Solution

The fourth proportional to 157,695.60, 236,543.40 and 126,591.60 is: 189,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,695.60 : 236,543.40 = 126,591.60 : x
  2. Step 2: Convert to fraction form
    157,695.60/236,543.40 = 126,591.60/x
  3. Step 3: Cross multiply
    157,695.60x = 236,543.40 × 126,591.60
  4. Step 4: Simplify right side
    157,695.60x = 29,944,407,475.44
  5. Step 5: Solve for x
    x = 29,944,407,475.44/157,695.60
  6. Step 6: Final answer
    x = 189,887.40

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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.