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Finding the Fourth Proportional to 157,616.70, 236,446.65 and 52,424.70

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Solution

The fourth proportional to 157,616.70, 236,446.65 and 52,424.70 is: 78,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,616.70 : 236,446.65 = 52,424.70 : x
  2. Step 2: Convert to fraction form
    157,616.70/236,446.65 = 52,424.70/x
  3. Step 3: Cross multiply
    157,616.70x = 236,446.65 × 52,424.70
  4. Step 4: Simplify right side
    157,616.70x = 12,395,644,692.26
  5. Step 5: Solve for x
    x = 12,395,644,692.26/157,616.70
  6. Step 6: Final answer
    x = 78,644.23

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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.