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Finding the Fourth Proportional to 282,512.70, 389,891.63 and 160,026.93

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Solution

The fourth proportional to 282,512.70, 389,891.63 and 160,026.93 is: 220,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,512.70 : 389,891.63 = 160,026.93 : x
  2. Step 2: Convert to fraction form
    282,512.70/389,891.63 = 160,026.93/x
  3. Step 3: Cross multiply
    282,512.70x = 389,891.63 × 160,026.93
  4. Step 4: Simplify right side
    282,512.70x = 62,393,163,013.18
  5. Step 5: Solve for x
    x = 62,393,163,013.18/282,512.70
  6. Step 6: Final answer
    x = 220,850.83

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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.