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Finding the Fourth Proportional to 82,881.93, 124,322.79 and 38,484.41

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Solution

The fourth proportional to 82,881.93, 124,322.79 and 38,484.41 is: 57,726.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,881.93 : 124,322.79 = 38,484.41 : x
  2. Step 2: Convert to fraction form
    82,881.93/124,322.79 = 38,484.41/x
  3. Step 3: Cross multiply
    82,881.93x = 124,322.79 × 38,484.41
  4. Step 4: Simplify right side
    82,881.93x = 4,784,489,222.70
  5. Step 5: Solve for x
    x = 4,784,489,222.70/82,881.93
  6. Step 6: Final answer
    x = 57,726.57

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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.