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Finding the Fourth Proportional to 106,618.60, 159,851.10 and 59,885.80

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Solution

The fourth proportional to 106,618.60, 159,851.10 and 59,885.80 is: 89,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,618.60 : 159,851.10 = 59,885.80 : x
  2. Step 2: Convert to fraction form
    106,618.60/159,851.10 = 59,885.80/x
  3. Step 3: Cross multiply
    106,618.60x = 159,851.10 × 59,885.80
  4. Step 4: Simplify right side
    106,618.60x = 9,572,811,004.38
  5. Step 5: Solve for x
    x = 9,572,811,004.38/106,618.60
  6. Step 6: Final answer
    x = 89,785.56

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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.