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Finding the Fourth Proportional to 67,332.40, 100,998.60 and 64,270.60

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Solution

The fourth proportional to 67,332.40, 100,998.60 and 64,270.60 is: 96,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,332.40 : 100,998.60 = 64,270.60 : x
  2. Step 2: Convert to fraction form
    67,332.40/100,998.60 = 64,270.60/x
  3. Step 3: Cross multiply
    67,332.40x = 100,998.60 × 64,270.60
  4. Step 4: Simplify right side
    67,332.40x = 6,491,240,621.16
  5. Step 5: Solve for x
    x = 6,491,240,621.16/67,332.40
  6. Step 6: Final answer
    x = 96,405.90

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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.