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Finding the Fourth Proportional to 157,532.70, 236,320.65 and 52,340.70

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Solution

The fourth proportional to 157,532.70, 236,320.65 and 52,340.70 is: 78,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,532.70 : 236,320.65 = 52,340.70 : x
  2. Step 2: Convert to fraction form
    157,532.70/236,320.65 = 52,340.70/x
  3. Step 3: Cross multiply
    157,532.70x = 236,320.65 × 52,340.70
  4. Step 4: Simplify right side
    157,532.70x = 12,369,188,245.46
  5. Step 5: Solve for x
    x = 12,369,188,245.46/157,532.70
  6. Step 6: Final answer
    x = 78,518.23

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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.