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Finding the Fourth Proportional to 86,216.74, 129,195.51 and 48,736.42

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Solution

The fourth proportional to 86,216.74, 129,195.51 and 48,736.42 is: 73,031.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,216.74 : 129,195.51 = 48,736.42 : x
  2. Step 2: Convert to fraction form
    86,216.74/129,195.51 = 48,736.42/x
  3. Step 3: Cross multiply
    86,216.74x = 129,195.51 × 48,736.42
  4. Step 4: Simplify right side
    86,216.74x = 6,296,526,637.47
  5. Step 5: Solve for x
    x = 6,296,526,637.47/86,216.74
  6. Step 6: Final answer
    x = 73,031.37

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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.