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Finding the Fourth Proportional to 107,877.56, 148,871.72 and 60,133.92

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Solution

The fourth proportional to 107,877.56, 148,871.72 and 60,133.92 is: 82,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,877.56 : 148,871.72 = 60,133.92 : x
  2. Step 2: Convert to fraction form
    107,877.56/148,871.72 = 60,133.92/x
  3. Step 3: Cross multiply
    107,877.56x = 148,871.72 × 60,133.92
  4. Step 4: Simplify right side
    107,877.56x = 8,952,240,100.74
  5. Step 5: Solve for x
    x = 8,952,240,100.74/107,877.56
  6. Step 6: Final answer
    x = 82,985.19

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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.