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Finding the Fourth Proportional to 67,232.20, 100,921.20 and 42,300.40

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Solution

The fourth proportional to 67,232.20, 100,921.20 and 42,300.40 is: 63,496.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,232.20 : 100,921.20 = 42,300.40 : x
  2. Step 2: Convert to fraction form
    67,232.20/100,921.20 = 42,300.40/x
  3. Step 3: Cross multiply
    67,232.20x = 100,921.20 × 42,300.40
  4. Step 4: Simplify right side
    67,232.20x = 4,269,007,128.48
  5. Step 5: Solve for x
    x = 4,269,007,128.48/67,232.20
  6. Step 6: Final answer
    x = 63,496.47

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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.