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Finding the Fourth Proportional to 108,502.48, 149,726.76 and 60,747.76

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Solution

The fourth proportional to 108,502.48, 149,726.76 and 60,747.76 is: 83,828.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,502.48 : 149,726.76 = 60,747.76 : x
  2. Step 2: Convert to fraction form
    108,502.48/149,726.76 = 60,747.76/x
  3. Step 3: Cross multiply
    108,502.48x = 149,726.76 × 60,747.76
  4. Step 4: Simplify right side
    108,502.48x = 9,095,565,282.06
  5. Step 5: Solve for x
    x = 9,095,565,282.06/108,502.48
  6. Step 6: Final answer
    x = 83,828.18

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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.