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Finding the Fourth Proportional to 173,574.90, 260,359.92 and 68,394.78

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Solution

The fourth proportional to 173,574.90, 260,359.92 and 68,394.78 is: 102,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,574.90 : 260,359.92 = 68,394.78 : x
  2. Step 2: Convert to fraction form
    173,574.90/260,359.92 = 68,394.78/x
  3. Step 3: Cross multiply
    173,574.90x = 260,359.92 × 68,394.78
  4. Step 4: Simplify right side
    173,574.90x = 17,807,259,449.22
  5. Step 5: Solve for x
    x = 17,807,259,449.22/173,574.90
  6. Step 6: Final answer
    x = 102,591.21

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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.