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Finding the Fourth Proportional to 74,503.29, 111,053.08 and 68,524.59

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Solution

The fourth proportional to 74,503.29, 111,053.08 and 68,524.59 is: 102,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,503.29 : 111,053.08 = 68,524.59 : x
  2. Step 2: Convert to fraction form
    74,503.29/111,053.08 = 68,524.59/x
  3. Step 3: Cross multiply
    74,503.29x = 111,053.08 × 68,524.59
  4. Step 4: Simplify right side
    74,503.29x = 7,609,866,603.93
  5. Step 5: Solve for x
    x = 7,609,866,603.93/74,503.29
  6. Step 6: Final answer
    x = 102,141.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.