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Finding the Fourth Proportional to 236,514.71, 354,818.80 and 86,756.39

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Solution

The fourth proportional to 236,514.71, 354,818.80 and 86,756.39 is: 130,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,514.71 : 354,818.80 = 86,756.39 : x
  2. Step 2: Convert to fraction form
    236,514.71/354,818.80 = 86,756.39/x
  3. Step 3: Cross multiply
    236,514.71x = 354,818.80 × 86,756.39
  4. Step 4: Simplify right side
    236,514.71x = 30,782,799,098.98
  5. Step 5: Solve for x
    x = 30,782,799,098.98/236,514.71
  6. Step 6: Final answer
    x = 130,151.73

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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.