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Finding the Fourth Proportional to 94,099.60, 129,857.28 and 51,658

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Solution

The fourth proportional to 94,099.60, 129,857.28 and 51,658 is: 71,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,099.60 : 129,857.28 = 51,658 : x
  2. Step 2: Convert to fraction form
    94,099.60/129,857.28 = 51,658/x
  3. Step 3: Cross multiply
    94,099.60x = 129,857.28 × 51,658
  4. Step 4: Simplify right side
    94,099.60x = 6,708,167,370.24
  5. Step 5: Solve for x
    x = 6,708,167,370.24/94,099.60
  6. Step 6: Final answer
    x = 71,287.95

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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.