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Finding the Fourth Proportional to 62,502.66, 86,253.30 and 57,419.28

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Solution

The fourth proportional to 62,502.66, 86,253.30 and 57,419.28 is: 79,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,502.66 : 86,253.30 = 57,419.28 : x
  2. Step 2: Convert to fraction form
    62,502.66/86,253.30 = 57,419.28/x
  3. Step 3: Cross multiply
    62,502.66x = 86,253.30 × 57,419.28
  4. Step 4: Simplify right side
    62,502.66x = 4,952,602,383.62
  5. Step 5: Solve for x
    x = 4,952,602,383.62/62,502.66
  6. Step 6: Final answer
    x = 79,238.27

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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.