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Finding the Fourth Proportional to 276,066.60, 414,099.90 and 98,658.60

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Solution

The fourth proportional to 276,066.60, 414,099.90 and 98,658.60 is: 147,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,066.60 : 414,099.90 = 98,658.60 : x
  2. Step 2: Convert to fraction form
    276,066.60/414,099.90 = 98,658.60/x
  3. Step 3: Cross multiply
    276,066.60x = 414,099.90 × 98,658.60
  4. Step 4: Simplify right side
    276,066.60x = 40,854,516,394.14
  5. Step 5: Solve for x
    x = 40,854,516,394.14/276,066.60
  6. Step 6: Final answer
    x = 147,987.90

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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.