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Finding the Fourth Proportional to 107,077.61, 147,766.05 and 58,679.97

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Solution

The fourth proportional to 107,077.61, 147,766.05 and 58,679.97 is: 80,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,077.61 : 147,766.05 = 58,679.97 : x
  2. Step 2: Convert to fraction form
    107,077.61/147,766.05 = 58,679.97/x
  3. Step 3: Cross multiply
    107,077.61x = 147,766.05 × 58,679.97
  4. Step 4: Simplify right side
    107,077.61x = 8,670,907,381.02
  5. Step 5: Solve for x
    x = 8,670,907,381.02/107,077.61
  6. Step 6: Final answer
    x = 80,977.79

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1.5x scale

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.