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Finding the Fourth Proportional to 170,641.92, 255,853.52 and 70,870.98

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Solution

The fourth proportional to 170,641.92, 255,853.52 and 70,870.98 is: 106,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,641.92 : 255,853.52 = 70,870.98 : x
  2. Step 2: Convert to fraction form
    170,641.92/255,853.52 = 70,870.98/x
  3. Step 3: Cross multiply
    170,641.92x = 255,853.52 × 70,870.98
  4. Step 4: Simplify right side
    170,641.92x = 18,132,589,698.85
  5. Step 5: Solve for x
    x = 18,132,589,698.85/170,641.92
  6. Step 6: Final answer
    x = 106,261.05

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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.