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Finding the Fourth Proportional to 69,060.65, 103,590.98 and 45,681.62

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Solution

The fourth proportional to 69,060.65, 103,590.98 and 45,681.62 is: 68,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,060.65 : 103,590.98 = 45,681.62 : x
  2. Step 2: Convert to fraction form
    69,060.65/103,590.98 = 45,681.62/x
  3. Step 3: Cross multiply
    69,060.65x = 103,590.98 × 45,681.62
  4. Step 4: Simplify right side
    69,060.65x = 4,732,204,071.32
  5. Step 5: Solve for x
    x = 4,732,204,071.32/69,060.65
  6. Step 6: Final answer
    x = 68,522.43

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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.