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Finding the Fourth Proportional to 173,872.90, 260,809.35 and 134,458.30

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Solution

The fourth proportional to 173,872.90, 260,809.35 and 134,458.30 is: 201,687.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,872.90 : 260,809.35 = 134,458.30 : x
  2. Step 2: Convert to fraction form
    173,872.90/260,809.35 = 134,458.30/x
  3. Step 3: Cross multiply
    173,872.90x = 260,809.35 × 134,458.30
  4. Step 4: Simplify right side
    173,872.90x = 35,067,981,825.11
  5. Step 5: Solve for x
    x = 35,067,981,825.11/173,872.90
  6. Step 6: Final answer
    x = 201,687.45

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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.