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Finding the Fourth Proportional to 89,281.93, 123,208.71 and 48,996.38

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Solution

The fourth proportional to 89,281.93, 123,208.71 and 48,996.38 is: 67,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,281.93 : 123,208.71 = 48,996.38 : x
  2. Step 2: Convert to fraction form
    89,281.93/123,208.71 = 48,996.38/x
  3. Step 3: Cross multiply
    89,281.93x = 123,208.71 × 48,996.38
  4. Step 4: Simplify right side
    89,281.93x = 6,036,780,774.47
  5. Step 5: Solve for x
    x = 6,036,780,774.47/89,281.93
  6. Step 6: Final answer
    x = 67,614.81

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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.