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Finding the Fourth Proportional to 90,305.94, 124,624.07 and 54,044.87

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Solution

The fourth proportional to 90,305.94, 124,624.07 and 54,044.87 is: 74,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,305.94 : 124,624.07 = 54,044.87 : x
  2. Step 2: Convert to fraction form
    90,305.94/124,624.07 = 54,044.87/x
  3. Step 3: Cross multiply
    90,305.94x = 124,624.07 × 54,044.87
  4. Step 4: Simplify right side
    90,305.94x = 6,735,291,672.35
  5. Step 5: Solve for x
    x = 6,735,291,672.35/90,305.94
  6. Step 6: Final answer
    x = 74,583.04

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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.