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Finding the Fourth Proportional to 126,857.64, 175,063.56 and 69,499.01

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Solution

The fourth proportional to 126,857.64, 175,063.56 and 69,499.01 is: 95,908.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,857.64 : 175,063.56 = 69,499.01 : x
  2. Step 2: Convert to fraction form
    126,857.64/175,063.56 = 69,499.01/x
  3. Step 3: Cross multiply
    126,857.64x = 175,063.56 × 69,499.01
  4. Step 4: Simplify right side
    126,857.64x = 12,166,743,231.76
  5. Step 5: Solve for x
    x = 12,166,743,231.76/126,857.64
  6. Step 6: Final answer
    x = 95,908.64

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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.