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Finding the Fourth Proportional to 74,847.66, 112,269.33 and 19,443.66

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Solution

The fourth proportional to 74,847.66, 112,269.33 and 19,443.66 is: 29,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,847.66 : 112,269.33 = 19,443.66 : x
  2. Step 2: Convert to fraction form
    74,847.66/112,269.33 = 19,443.66/x
  3. Step 3: Cross multiply
    74,847.66x = 112,269.33 × 19,443.66
  4. Step 4: Simplify right side
    74,847.66x = 2,182,926,680.95
  5. Step 5: Solve for x
    x = 2,182,926,680.95/74,847.66
  6. Step 6: Final answer
    x = 29,164.93

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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.