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Finding the Fourth Proportional to 268,366.80, 402,598.80 and 134,911.20

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Solution

The fourth proportional to 268,366.80, 402,598.80 and 134,911.20 is: 202,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,366.80 : 402,598.80 = 134,911.20 : x
  2. Step 2: Convert to fraction form
    268,366.80/402,598.80 = 134,911.20/x
  3. Step 3: Cross multiply
    268,366.80x = 402,598.80 × 134,911.20
  4. Step 4: Simplify right side
    268,366.80x = 54,315,087,226.56
  5. Step 5: Solve for x
    x = 54,315,087,226.56/268,366.80
  6. Step 6: Final answer
    x = 202,391.23

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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.