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Finding the Fourth Proportional to 67,219.20, 100,828.80 and 62,150.40

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Solution

The fourth proportional to 67,219.20, 100,828.80 and 62,150.40 is: 93,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,219.20 : 100,828.80 = 62,150.40 : x
  2. Step 2: Convert to fraction form
    67,219.20/100,828.80 = 62,150.40/x
  3. Step 3: Cross multiply
    67,219.20x = 100,828.80 × 62,150.40
  4. Step 4: Simplify right side
    67,219.20x = 6,266,550,251.52
  5. Step 5: Solve for x
    x = 6,266,550,251.52/67,219.20
  6. Step 6: Final answer
    x = 93,225.60

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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.