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Finding the Fourth Proportional to 68,937.80, 103,494.19 and 58,615.16

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Solution

The fourth proportional to 68,937.80, 103,494.19 and 58,615.16 is: 87,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,937.80 : 103,494.19 = 58,615.16 : x
  2. Step 2: Convert to fraction form
    68,937.80/103,494.19 = 58,615.16/x
  3. Step 3: Cross multiply
    68,937.80x = 103,494.19 × 58,615.16
  4. Step 4: Simplify right side
    68,937.80x = 6,066,327,841.91
  5. Step 5: Solve for x
    x = 6,066,327,841.91/68,937.80
  6. Step 6: Final answer
    x = 87,997.13

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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.