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Finding the Fourth Proportional to 86,117.84, 129,151.64 and 33,514.82

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Solution

The fourth proportional to 86,117.84, 129,151.64 and 33,514.82 is: 50,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,117.84 : 129,151.64 = 33,514.82 : x
  2. Step 2: Convert to fraction form
    86,117.84/129,151.64 = 33,514.82/x
  3. Step 3: Cross multiply
    86,117.84x = 129,151.64 × 33,514.82
  4. Step 4: Simplify right side
    86,117.84x = 4,328,493,405.33
  5. Step 5: Solve for x
    x = 4,328,493,405.33/86,117.84
  6. Step 6: Final answer
    x = 50,262.45

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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.