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Finding the Fourth Proportional to 67,432.80, 101,124.90 and 34,141.80

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Solution

The fourth proportional to 67,432.80, 101,124.90 and 34,141.80 is: 51,200.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,432.80 : 101,124.90 = 34,141.80 : x
  2. Step 2: Convert to fraction form
    67,432.80/101,124.90 = 34,141.80/x
  3. Step 3: Cross multiply
    67,432.80x = 101,124.90 × 34,141.80
  4. Step 4: Simplify right side
    67,432.80x = 3,452,586,110.82
  5. Step 5: Solve for x
    x = 3,452,586,110.82/67,432.80
  6. Step 6: Final answer
    x = 51,200.40

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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.