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Finding the Fourth Proportional to 101,439.92, 152,195.90 and 45,274.92

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Solution

The fourth proportional to 101,439.92, 152,195.90 and 45,274.92 is: 67,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,439.92 : 152,195.90 = 45,274.92 : x
  2. Step 2: Convert to fraction form
    101,439.92/152,195.90 = 45,274.92/x
  3. Step 3: Cross multiply
    101,439.92x = 152,195.90 × 45,274.92
  4. Step 4: Simplify right side
    101,439.92x = 6,890,657,196.83
  5. Step 5: Solve for x
    x = 6,890,657,196.83/101,439.92
  6. Step 6: Final answer
    x = 67,928.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.