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Finding the Fourth Proportional to 100,626.60, 151,071.80 and 67,494.90

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Solution

The fourth proportional to 100,626.60, 151,071.80 and 67,494.90 is: 101,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,626.60 : 151,071.80 = 67,494.90 : x
  2. Step 2: Convert to fraction form
    100,626.60/151,071.80 = 67,494.90/x
  3. Step 3: Cross multiply
    100,626.60x = 151,071.80 × 67,494.90
  4. Step 4: Simplify right side
    100,626.60x = 10,196,576,033.82
  5. Step 5: Solve for x
    x = 10,196,576,033.82/100,626.60
  6. Step 6: Final answer
    x = 101,330.82

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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.