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Finding the Fourth Proportional to 261,874.70, 361,376.92 and 160,070.62

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Solution

The fourth proportional to 261,874.70, 361,376.92 and 160,070.62 is: 220,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,874.70 : 361,376.92 = 160,070.62 : x
  2. Step 2: Convert to fraction form
    261,874.70/361,376.92 = 160,070.62/x
  3. Step 3: Cross multiply
    261,874.70x = 361,376.92 × 160,070.62
  4. Step 4: Simplify right side
    261,874.70x = 57,845,826,934.74
  5. Step 5: Solve for x
    x = 57,845,826,934.74/261,874.70
  6. Step 6: Final answer
    x = 220,891.24

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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.