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Finding the Fourth Proportional to 157,903.60, 236,778.54 and 52,687

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Solution

The fourth proportional to 157,903.60, 236,778.54 and 52,687 is: 79,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,903.60 : 236,778.54 = 52,687 : x
  2. Step 2: Convert to fraction form
    157,903.60/236,778.54 = 52,687/x
  3. Step 3: Cross multiply
    157,903.60x = 236,778.54 × 52,687
  4. Step 4: Simplify right side
    157,903.60x = 12,475,150,936.98
  5. Step 5: Solve for x
    x = 12,475,150,936.98/157,903.60
  6. Step 6: Final answer
    x = 79,004.85

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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.