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Finding the Fourth Proportional to 86,393.68, 119,222.76 and 48,680.08

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Solution

The fourth proportional to 86,393.68, 119,222.76 and 48,680.08 is: 67,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,393.68 : 119,222.76 = 48,680.08 : x
  2. Step 2: Convert to fraction form
    86,393.68/119,222.76 = 48,680.08/x
  3. Step 3: Cross multiply
    86,393.68x = 119,222.76 × 48,680.08
  4. Step 4: Simplify right side
    86,393.68x = 5,803,773,494.62
  5. Step 5: Solve for x
    x = 5,803,773,494.62/86,393.68
  6. Step 6: Final answer
    x = 67,178.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.