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Finding the Fourth Proportional to 111,371.40, 153,692.45 and 60,385.83

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Solution

The fourth proportional to 111,371.40, 153,692.45 and 60,385.83 is: 83,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,371.40 : 153,692.45 = 60,385.83 : x
  2. Step 2: Convert to fraction form
    111,371.40/153,692.45 = 60,385.83/x
  3. Step 3: Cross multiply
    111,371.40x = 153,692.45 × 60,385.83
  4. Step 4: Simplify right side
    111,371.40x = 9,280,845,540.49
  5. Step 5: Solve for x
    x = 9,280,845,540.49/111,371.40
  6. Step 6: Final answer
    x = 83,332.39

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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.