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Finding the Fourth Proportional to 67,390.65, 93,029 and 43,528.97

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Solution

The fourth proportional to 67,390.65, 93,029 and 43,528.97 is: 60,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,390.65 : 93,029 = 43,528.97 : x
  2. Step 2: Convert to fraction form
    67,390.65/93,029 = 43,528.97/x
  3. Step 3: Cross multiply
    67,390.65x = 93,029 × 43,528.97
  4. Step 4: Simplify right side
    67,390.65x = 4,049,456,550.13
  5. Step 5: Solve for x
    x = 4,049,456,550.13/67,390.65
  6. Step 6: Final answer
    x = 60,089.29

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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.