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Finding the Fourth Proportional to 92,379.84, 127,503.36 and 60,489.60

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Solution

The fourth proportional to 92,379.84, 127,503.36 and 60,489.60 is: 83,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,379.84 : 127,503.36 = 60,489.60 : x
  2. Step 2: Convert to fraction form
    92,379.84/127,503.36 = 60,489.60/x
  3. Step 3: Cross multiply
    92,379.84x = 127,503.36 × 60,489.60
  4. Step 4: Simplify right side
    92,379.84x = 7,712,627,245.06
  5. Step 5: Solve for x
    x = 7,712,627,245.06/92,379.84
  6. Step 6: Final answer
    x = 83,488.21

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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.