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Finding the Fourth Proportional to 80,544.40, 120,701.40 and 59,318.80

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Solution

The fourth proportional to 80,544.40, 120,701.40 and 59,318.80 is: 88,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,544.40 : 120,701.40 = 59,318.80 : x
  2. Step 2: Convert to fraction form
    80,544.40/120,701.40 = 59,318.80/x
  3. Step 3: Cross multiply
    80,544.40x = 120,701.40 × 59,318.80
  4. Step 4: Simplify right side
    80,544.40x = 7,159,862,206.32
  5. Step 5: Solve for x
    x = 7,159,862,206.32/80,544.40
  6. Step 6: Final answer
    x = 88,893.36

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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.