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Finding the Fourth Proportional to 83,318.03, 114,978.56 and 45,077.45

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Solution

The fourth proportional to 83,318.03, 114,978.56 and 45,077.45 is: 62,206.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,318.03 : 114,978.56 = 45,077.45 : x
  2. Step 2: Convert to fraction form
    83,318.03/114,978.56 = 45,077.45/x
  3. Step 3: Cross multiply
    83,318.03x = 114,978.56 × 45,077.45
  4. Step 4: Simplify right side
    83,318.03x = 5,182,940,089.40
  5. Step 5: Solve for x
    x = 5,182,940,089.40/83,318.03
  6. Step 6: Final answer
    x = 62,206.71

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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.