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Finding the Fourth Proportional to 110,671.92, 152,871.30 and 89,530.92

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Solution

The fourth proportional to 110,671.92, 152,871.30 and 89,530.92 is: 123,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,671.92 : 152,871.30 = 89,530.92 : x
  2. Step 2: Convert to fraction form
    110,671.92/152,871.30 = 89,530.92/x
  3. Step 3: Cross multiply
    110,671.92x = 152,871.30 × 89,530.92
  4. Step 4: Simplify right side
    110,671.92x = 13,686,708,130.60
  5. Step 5: Solve for x
    x = 13,686,708,130.60/110,671.92
  6. Step 6: Final answer
    x = 123,669.20

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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.