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Finding the Fourth Proportional to 107,788.84, 148,728.90 and 60,040.96

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Solution

The fourth proportional to 107,788.84, 148,728.90 and 60,040.96 is: 82,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,788.84 : 148,728.90 = 60,040.96 : x
  2. Step 2: Convert to fraction form
    107,788.84/148,728.90 = 60,040.96/x
  3. Step 3: Cross multiply
    107,788.84x = 148,728.90 × 60,040.96
  4. Step 4: Simplify right side
    107,788.84x = 8,929,825,935.74
  5. Step 5: Solve for x
    x = 8,929,825,935.74/107,788.84
  6. Step 6: Final answer
    x = 82,845.55

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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.