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Finding the Fourth Proportional to 107,999.79, 149,039.13 and 60,253.02

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Solution

The fourth proportional to 107,999.79, 149,039.13 and 60,253.02 is: 83,148.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,999.79 : 149,039.13 = 60,253.02 : x
  2. Step 2: Convert to fraction form
    107,999.79/149,039.13 = 60,253.02/x
  3. Step 3: Cross multiply
    107,999.79x = 149,039.13 × 60,253.02
  4. Step 4: Simplify right side
    107,999.79x = 8,980,057,680.67
  5. Step 5: Solve for x
    x = 8,980,057,680.67/107,999.79
  6. Step 6: Final answer
    x = 83,148.84

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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.