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Finding the Fourth Proportional to 69,918.49, 96,494.49 and 42,693.08

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Solution

The fourth proportional to 69,918.49, 96,494.49 and 42,693.08 is: 58,920.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,918.49 : 96,494.49 = 42,693.08 : x
  2. Step 2: Convert to fraction form
    69,918.49/96,494.49 = 42,693.08/x
  3. Step 3: Cross multiply
    69,918.49x = 96,494.49 × 42,693.08
  4. Step 4: Simplify right side
    69,918.49x = 4,119,646,981.13
  5. Step 5: Solve for x
    x = 4,119,646,981.13/69,918.49
  6. Step 6: Final answer
    x = 58,920.71

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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.