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Finding the Fourth Proportional to 157,635.70, 236,475.15 and 52,443.70

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Solution

The fourth proportional to 157,635.70, 236,475.15 and 52,443.70 is: 78,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,635.70 : 236,475.15 = 52,443.70 : x
  2. Step 2: Convert to fraction form
    157,635.70/236,475.15 = 52,443.70/x
  3. Step 3: Cross multiply
    157,635.70x = 236,475.15 × 52,443.70
  4. Step 4: Simplify right side
    157,635.70x = 12,401,631,824.06
  5. Step 5: Solve for x
    x = 12,401,631,824.06/157,635.70
  6. Step 6: Final answer
    x = 78,672.74

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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.