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Finding the Fourth Proportional to 73,254.60, 109,881.90 and 68,005.80

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Solution

The fourth proportional to 73,254.60, 109,881.90 and 68,005.80 is: 102,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,254.60 : 109,881.90 = 68,005.80 : x
  2. Step 2: Convert to fraction form
    73,254.60/109,881.90 = 68,005.80/x
  3. Step 3: Cross multiply
    73,254.60x = 109,881.90 × 68,005.80
  4. Step 4: Simplify right side
    73,254.60x = 7,472,606,515.02
  5. Step 5: Solve for x
    x = 7,472,606,515.02/73,254.60
  6. Step 6: Final answer
    x = 102,008.70

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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.