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Finding the Fourth Proportional to 108,162.48, 149,263.92 and 60,415.92

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Solution

The fourth proportional to 108,162.48, 149,263.92 and 60,415.92 is: 83,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,162.48 : 149,263.92 = 60,415.92 : x
  2. Step 2: Convert to fraction form
    108,162.48/149,263.92 = 60,415.92/x
  3. Step 3: Cross multiply
    108,162.48x = 149,263.92 × 60,415.92
  4. Step 4: Simplify right side
    108,162.48x = 9,017,917,049.61
  5. Step 5: Solve for x
    x = 9,017,917,049.61/108,162.48
  6. Step 6: Final answer
    x = 83,373.80

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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.