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Finding the Fourth Proportional to 248,569.80, 372,854.70 and 82,357.80

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Solution

The fourth proportional to 248,569.80, 372,854.70 and 82,357.80 is: 123,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,569.80 : 372,854.70 = 82,357.80 : x
  2. Step 2: Convert to fraction form
    248,569.80/372,854.70 = 82,357.80/x
  3. Step 3: Cross multiply
    248,569.80x = 372,854.70 × 82,357.80
  4. Step 4: Simplify right side
    248,569.80x = 30,707,492,811.66
  5. Step 5: Solve for x
    x = 30,707,492,811.66/248,569.80
  6. Step 6: Final answer
    x = 123,536.70

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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.