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Finding the Fourth Proportional to 358,531.80, 537,797.70 and 148,320.60

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Solution

The fourth proportional to 358,531.80, 537,797.70 and 148,320.60 is: 222,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,531.80 : 537,797.70 = 148,320.60 : x
  2. Step 2: Convert to fraction form
    358,531.80/537,797.70 = 148,320.60/x
  3. Step 3: Cross multiply
    358,531.80x = 537,797.70 × 148,320.60
  4. Step 4: Simplify right side
    358,531.80x = 79,766,477,542.62
  5. Step 5: Solve for x
    x = 79,766,477,542.62/358,531.80
  6. Step 6: Final answer
    x = 222,480.90

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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.