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Finding the Fourth Proportional to 79,895.76, 110,296.08 and 49,690.80

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Solution

The fourth proportional to 79,895.76, 110,296.08 and 49,690.80 is: 68,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,895.76 : 110,296.08 = 49,690.80 : x
  2. Step 2: Convert to fraction form
    79,895.76/110,296.08 = 49,690.80/x
  3. Step 3: Cross multiply
    79,895.76x = 110,296.08 × 49,690.80
  4. Step 4: Simplify right side
    79,895.76x = 5,480,700,452.06
  5. Step 5: Solve for x
    x = 5,480,700,452.06/79,895.76
  6. Step 6: Final answer
    x = 68,598.14

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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.