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Finding the Fourth Proportional to 61,479.60, 84,881.07 and 50,176.09

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Solution

The fourth proportional to 61,479.60, 84,881.07 and 50,176.09 is: 69,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,479.60 : 84,881.07 = 50,176.09 : x
  2. Step 2: Convert to fraction form
    61,479.60/84,881.07 = 50,176.09/x
  3. Step 3: Cross multiply
    61,479.60x = 84,881.07 × 50,176.09
  4. Step 4: Simplify right side
    61,479.60x = 4,259,000,313.72
  5. Step 5: Solve for x
    x = 4,259,000,313.72/61,479.60
  6. Step 6: Final answer
    x = 69,275.02

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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.