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Finding the Fourth Proportional to 170,816.30, 255,619.65 and 148,870.70

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Solution

The fourth proportional to 170,816.30, 255,619.65 and 148,870.70 is: 222,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,816.30 : 255,619.65 = 148,870.70 : x
  2. Step 2: Convert to fraction form
    170,816.30/255,619.65 = 148,870.70/x
  3. Step 3: Cross multiply
    170,816.30x = 255,619.65 × 148,870.70
  4. Step 4: Simplify right side
    170,816.30x = 38,054,276,229.26
  5. Step 5: Solve for x
    x = 38,054,276,229.26/170,816.30
  6. Step 6: Final answer
    x = 222,778.95

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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.