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Finding the Fourth Proportional to 101,766.62, 140,436.99 and 56,444.69

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Solution

The fourth proportional to 101,766.62, 140,436.99 and 56,444.69 is: 77,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,766.62 : 140,436.99 = 56,444.69 : x
  2. Step 2: Convert to fraction form
    101,766.62/140,436.99 = 56,444.69/x
  3. Step 3: Cross multiply
    101,766.62x = 140,436.99 × 56,444.69
  4. Step 4: Simplify right side
    101,766.62x = 7,926,921,662.90
  5. Step 5: Solve for x
    x = 7,926,921,662.90/101,766.62
  6. Step 6: Final answer
    x = 77,893.14

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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.