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Finding the Fourth Proportional to 103,277, 142,522.26 and 58,565

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Solution

The fourth proportional to 103,277, 142,522.26 and 58,565 is: 80,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,277 : 142,522.26 = 58,565 : x
  2. Step 2: Convert to fraction form
    103,277/142,522.26 = 58,565/x
  3. Step 3: Cross multiply
    103,277x = 142,522.26 × 58,565
  4. Step 4: Simplify right side
    103,277x = 8,346,816,156.90
  5. Step 5: Solve for x
    x = 8,346,816,156.90/103,277
  6. Step 6: Final answer
    x = 80,819.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.