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Finding the Fourth Proportional to 157,685.60, 236,139.60 and 104,808.80

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Solution

The fourth proportional to 157,685.60, 236,139.60 and 104,808.80 is: 156,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,685.60 : 236,139.60 = 104,808.80 : x
  2. Step 2: Convert to fraction form
    157,685.60/236,139.60 = 104,808.80/x
  3. Step 3: Cross multiply
    157,685.60x = 236,139.60 × 104,808.80
  4. Step 4: Simplify right side
    157,685.60x = 24,749,508,108.48
  5. Step 5: Solve for x
    x = 24,749,508,108.48/157,685.60
  6. Step 6: Final answer
    x = 156,954.78

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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.