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Finding the Fourth Proportional to 61,262.93, 84,552.86 and 42,126.68

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Solution

The fourth proportional to 61,262.93, 84,552.86 and 42,126.68 is: 58,141.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,262.93 : 84,552.86 = 42,126.68 : x
  2. Step 2: Convert to fraction form
    61,262.93/84,552.86 = 42,126.68/x
  3. Step 3: Cross multiply
    61,262.93x = 84,552.86 × 42,126.68
  4. Step 4: Simplify right side
    61,262.93x = 3,561,931,593.00
  5. Step 5: Solve for x
    x = 3,561,931,593.00/61,262.93
  6. Step 6: Final answer
    x = 58,141.71

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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.