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Finding the Fourth Proportional to 358,355.20, 537,727.20 and 148,014.40

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Solution

The fourth proportional to 358,355.20, 537,727.20 and 148,014.40 is: 222,101.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,355.20 : 537,727.20 = 148,014.40 : x
  2. Step 2: Convert to fraction form
    358,355.20/537,727.20 = 148,014.40/x
  3. Step 3: Cross multiply
    358,355.20x = 537,727.20 × 148,014.40
  4. Step 4: Simplify right side
    358,355.20x = 79,591,368,871.68
  5. Step 5: Solve for x
    x = 79,591,368,871.68/358,355.20
  6. Step 6: Final answer
    x = 222,101.89

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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.