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Finding the Fourth Proportional to 282,169.44, 389,398.59 and 154,856.88

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Solution

The fourth proportional to 282,169.44, 389,398.59 and 154,856.88 is: 213,705.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,169.44 : 389,398.59 = 154,856.88 : x
  2. Step 2: Convert to fraction form
    282,169.44/389,398.59 = 154,856.88/x
  3. Step 3: Cross multiply
    282,169.44x = 389,398.59 × 154,856.88
  4. Step 4: Simplify right side
    282,169.44x = 60,301,050,723.80
  5. Step 5: Solve for x
    x = 60,301,050,723.80/282,169.44
  6. Step 6: Final answer
    x = 213,705.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.