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Finding the Fourth Proportional to 49,992.48, 74,547.79 and 49,542.42

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Solution

The fourth proportional to 49,992.48, 74,547.79 and 49,542.42 is: 73,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,992.48 : 74,547.79 = 49,542.42 : x
  2. Step 2: Convert to fraction form
    49,992.48/74,547.79 = 49,542.42/x
  3. Step 3: Cross multiply
    49,992.48x = 74,547.79 × 49,542.42
  4. Step 4: Simplify right side
    49,992.48x = 3,693,278,077.95
  5. Step 5: Solve for x
    x = 3,693,278,077.95/49,992.48
  6. Step 6: Final answer
    x = 73,876.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.