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Finding the Fourth Proportional to 83,080.04, 114,657 and 47,271.56

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Solution

The fourth proportional to 83,080.04, 114,657 and 47,271.56 is: 65,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,080.04 : 114,657 = 47,271.56 : x
  2. Step 2: Convert to fraction form
    83,080.04/114,657 = 47,271.56/x
  3. Step 3: Cross multiply
    83,080.04x = 114,657 × 47,271.56
  4. Step 4: Simplify right side
    83,080.04x = 5,420,015,254.92
  5. Step 5: Solve for x
    x = 5,420,015,254.92/83,080.04
  6. Step 6: Final answer
    x = 65,238.48

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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.