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Finding the Fourth Proportional to 173,728.20, 260,981.10 and 166,643.40

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Solution

The fourth proportional to 173,728.20, 260,981.10 and 166,643.40 is: 250,338.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,728.20 : 260,981.10 = 166,643.40 : x
  2. Step 2: Convert to fraction form
    173,728.20/260,981.10 = 166,643.40/x
  3. Step 3: Cross multiply
    173,728.20x = 260,981.10 × 166,643.40
  4. Step 4: Simplify right side
    173,728.20x = 43,490,777,839.74
  5. Step 5: Solve for x
    x = 43,490,777,839.74/173,728.20
  6. Step 6: Final answer
    x = 250,338.04

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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.