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Finding the Fourth Proportional to 82,773.40, 124,160.10 and 43,342.60

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Solution

The fourth proportional to 82,773.40, 124,160.10 and 43,342.60 is: 65,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,773.40 : 124,160.10 = 43,342.60 : x
  2. Step 2: Convert to fraction form
    82,773.40/124,160.10 = 43,342.60/x
  3. Step 3: Cross multiply
    82,773.40x = 124,160.10 × 43,342.60
  4. Step 4: Simplify right side
    82,773.40x = 5,381,421,550.26
  5. Step 5: Solve for x
    x = 5,381,421,550.26/82,773.40
  6. Step 6: Final answer
    x = 65,013.90

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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.