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Finding the Fourth Proportional to 117,853.68, 162,659.16 and 75,410.76

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Solution

The fourth proportional to 117,853.68, 162,659.16 and 75,410.76 is: 104,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,853.68 : 162,659.16 = 75,410.76 : x
  2. Step 2: Convert to fraction form
    117,853.68/162,659.16 = 75,410.76/x
  3. Step 3: Cross multiply
    117,853.68x = 162,659.16 × 75,410.76
  4. Step 4: Simplify right side
    117,853.68x = 12,266,250,876.56
  5. Step 5: Solve for x
    x = 12,266,250,876.56/117,853.68
  6. Step 6: Final answer
    x = 104,080.34

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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.