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Finding the Fourth Proportional to 74,602.65, 111,905.15 and 41,532.91

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Solution

The fourth proportional to 74,602.65, 111,905.15 and 41,532.91 is: 62,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602.65 : 111,905.15 = 41,532.91 : x
  2. Step 2: Convert to fraction form
    74,602.65/111,905.15 = 41,532.91/x
  3. Step 3: Cross multiply
    74,602.65x = 111,905.15 × 41,532.91
  4. Step 4: Simplify right side
    74,602.65x = 4,647,746,523.49
  5. Step 5: Solve for x
    x = 4,647,746,523.49/74,602.65
  6. Step 6: Final answer
    x = 62,300.02

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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.