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Finding the Fourth Proportional to 89,250.81, 133,693.95 and 49,828.92

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Solution

The fourth proportional to 89,250.81, 133,693.95 and 49,828.92 is: 74,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,250.81 : 133,693.95 = 49,828.92 : x
  2. Step 2: Convert to fraction form
    89,250.81/133,693.95 = 49,828.92/x
  3. Step 3: Cross multiply
    89,250.81x = 133,693.95 × 49,828.92
  4. Step 4: Simplify right side
    89,250.81x = 6,661,825,139.03
  5. Step 5: Solve for x
    x = 6,661,825,139.03/89,250.81
  6. Step 6: Final answer
    x = 74,641.62

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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.