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Finding the Fourth Proportional to 198,002.60, 296,420.70 and 186,468.20

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Solution

The fourth proportional to 198,002.60, 296,420.70 and 186,468.20 is: 279,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,002.60 : 296,420.70 = 186,468.20 : x
  2. Step 2: Convert to fraction form
    198,002.60/296,420.70 = 186,468.20/x
  3. Step 3: Cross multiply
    198,002.60x = 296,420.70 × 186,468.20
  4. Step 4: Simplify right side
    198,002.60x = 55,273,034,371.74
  5. Step 5: Solve for x
    x = 55,273,034,371.74/198,002.60
  6. Step 6: Final answer
    x = 279,153.07

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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.