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Finding the Fourth Proportional to 281,776.79, 422,468.30 and 104,260.76

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Solution

The fourth proportional to 281,776.79, 422,468.30 and 104,260.76 is: 156,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,776.79 : 422,468.30 = 104,260.76 : x
  2. Step 2: Convert to fraction form
    281,776.79/422,468.30 = 104,260.76/x
  3. Step 3: Cross multiply
    281,776.79x = 422,468.30 × 104,260.76
  4. Step 4: Simplify right side
    281,776.79x = 44,046,863,400.26
  5. Step 5: Solve for x
    x = 44,046,863,400.26/281,776.79
  6. Step 6: Final answer
    x = 156,318.28

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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.