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Finding the Fourth Proportional to 172,292.76, 258,283.44 and 61,458.84

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Solution

The fourth proportional to 172,292.76, 258,283.44 and 61,458.84 is: 92,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,292.76 : 258,283.44 = 61,458.84 : x
  2. Step 2: Convert to fraction form
    172,292.76/258,283.44 = 61,458.84/x
  3. Step 3: Cross multiply
    172,292.76x = 258,283.44 × 61,458.84
  4. Step 4: Simplify right side
    172,292.76x = 15,873,800,613.61
  5. Step 5: Solve for x
    x = 15,873,800,613.61/172,292.76
  6. Step 6: Final answer
    x = 92,132.72

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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.