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Finding the Fourth Proportional to 79,599.60, 109,897.87 and 49,416.95

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Solution

The fourth proportional to 79,599.60, 109,897.87 and 49,416.95 is: 68,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,599.60 : 109,897.87 = 49,416.95 : x
  2. Step 2: Convert to fraction form
    79,599.60/109,897.87 = 49,416.95/x
  3. Step 3: Cross multiply
    79,599.60x = 109,897.87 × 49,416.95
  4. Step 4: Simplify right side
    79,599.60x = 5,430,817,311.57
  5. Step 5: Solve for x
    x = 5,430,817,311.57/79,599.60
  6. Step 6: Final answer
    x = 68,226.69

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1.5x scale

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.