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Finding the Fourth Proportional to 173,959.40, 260,744.70 and 99,115.40

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Solution

The fourth proportional to 173,959.40, 260,744.70 and 99,115.40 is: 148,562.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,959.40 : 260,744.70 = 99,115.40 : x
  2. Step 2: Convert to fraction form
    173,959.40/260,744.70 = 99,115.40/x
  3. Step 3: Cross multiply
    173,959.40x = 260,744.70 × 99,115.40
  4. Step 4: Simplify right side
    173,959.40x = 25,843,815,238.38
  5. Step 5: Solve for x
    x = 25,843,815,238.38/173,959.40
  6. Step 6: Final answer
    x = 148,562.34

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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.