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Finding the Fourth Proportional to 84,919.02, 117,192.15 and 47,191.02

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Solution

The fourth proportional to 84,919.02, 117,192.15 and 47,191.02 is: 65,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.02 : 117,192.15 = 47,191.02 : x
  2. Step 2: Convert to fraction form
    84,919.02/117,192.15 = 47,191.02/x
  3. Step 3: Cross multiply
    84,919.02x = 117,192.15 × 47,191.02
  4. Step 4: Simplify right side
    84,919.02x = 5,530,417,094.49
  5. Step 5: Solve for x
    x = 5,530,417,094.49/84,919.02
  6. Step 6: Final answer
    x = 65,125.78

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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.