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Finding the Fourth Proportional to 260,610.60, 390,624.30 and 148,344.60

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Solution

The fourth proportional to 260,610.60, 390,624.30 and 148,344.60 is: 222,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,610.60 : 390,624.30 = 148,344.60 : x
  2. Step 2: Convert to fraction form
    260,610.60/390,624.30 = 148,344.60/x
  3. Step 3: Cross multiply
    260,610.60x = 390,624.30 × 148,344.60
  4. Step 4: Simplify right side
    260,610.60x = 57,947,005,533.78
  5. Step 5: Solve for x
    x = 57,947,005,533.78/260,610.60
  6. Step 6: Final answer
    x = 222,350.92

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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.