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Finding the Fourth Proportional to 91,148.92, 125,770.44 and 60,885.70

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Solution

The fourth proportional to 91,148.92, 125,770.44 and 60,885.70 is: 84,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,148.92 : 125,770.44 = 60,885.70 : x
  2. Step 2: Convert to fraction form
    91,148.92/125,770.44 = 60,885.70/x
  3. Step 3: Cross multiply
    91,148.92x = 125,770.44 × 60,885.70
  4. Step 4: Simplify right side
    91,148.92x = 7,657,621,278.71
  5. Step 5: Solve for x
    x = 7,657,621,278.71/91,148.92
  6. Step 6: Final answer
    x = 84,012.20

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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.