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Finding the Fourth Proportional to 90,494.96, 124,880.66 and 49,658.96

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Solution

The fourth proportional to 90,494.96, 124,880.66 and 49,658.96 is: 68,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,494.96 : 124,880.66 = 49,658.96 : x
  2. Step 2: Convert to fraction form
    90,494.96/124,880.66 = 49,658.96/x
  3. Step 3: Cross multiply
    90,494.96x = 124,880.66 × 49,658.96
  4. Step 4: Simplify right side
    90,494.96x = 6,201,443,699.71
  5. Step 5: Solve for x
    x = 6,201,443,699.71/90,494.96
  6. Step 6: Final answer
    x = 68,528.06

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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.