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Finding the Fourth Proportional to 169,729, 254,593.50 and 58,921

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Solution

The fourth proportional to 169,729, 254,593.50 and 58,921 is: 88,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,729 : 254,593.50 = 58,921 : x
  2. Step 2: Convert to fraction form
    169,729/254,593.50 = 58,921/x
  3. Step 3: Cross multiply
    169,729x = 254,593.50 × 58,921
  4. Step 4: Simplify right side
    169,729x = 15,000,903,613.50
  5. Step 5: Solve for x
    x = 15,000,903,613.50/169,729
  6. Step 6: Final answer
    x = 88,381.50

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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.