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Finding the Fourth Proportional to 80,168.96, 110,615.61 and 47,898.74

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Solution

The fourth proportional to 80,168.96, 110,615.61 and 47,898.74 is: 66,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,168.96 : 110,615.61 = 47,898.74 : x
  2. Step 2: Convert to fraction form
    80,168.96/110,615.61 = 47,898.74/x
  3. Step 3: Cross multiply
    80,168.96x = 110,615.61 × 47,898.74
  4. Step 4: Simplify right side
    80,168.96x = 5,298,348,205.06
  5. Step 5: Solve for x
    x = 5,298,348,205.06/80,168.96
  6. Step 6: Final answer
    x = 66,089.77

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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.