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Finding the Fourth Proportional to 90,097.65, 124,332.33 and 49,813.11

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Solution

The fourth proportional to 90,097.65, 124,332.33 and 49,813.11 is: 68,740.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,097.65 : 124,332.33 = 49,813.11 : x
  2. Step 2: Convert to fraction form
    90,097.65/124,332.33 = 49,813.11/x
  3. Step 3: Cross multiply
    90,097.65x = 124,332.33 × 49,813.11
  4. Step 4: Simplify right side
    90,097.65x = 6,193,380,030.85
  5. Step 5: Solve for x
    x = 6,193,380,030.85/90,097.65
  6. Step 6: Final answer
    x = 68,740.75

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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.