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Finding the Fourth Proportional to 71,570.65, 100,337.15 and 71,570.65

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Solution

The fourth proportional to 71,570.65, 100,337.15 and 71,570.65 is: 100,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570.65 : 100,337.15 = 71,570.65 : x
  2. Step 2: Convert to fraction form
    71,570.65/100,337.15 = 71,570.65/x
  3. Step 3: Cross multiply
    71,570.65x = 100,337.15 × 71,570.65
  4. Step 4: Simplify right side
    71,570.65x = 7,181,195,044.65
  5. Step 5: Solve for x
    x = 7,181,195,044.65/71,570.65
  6. Step 6: Final answer
    x = 100,337.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.