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Finding the Fourth Proportional to 207,298.80, 310,717.80 and 113,871.60

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Solution

The fourth proportional to 207,298.80, 310,717.80 and 113,871.60 is: 170,680.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,298.80 : 310,717.80 = 113,871.60 : x
  2. Step 2: Convert to fraction form
    207,298.80/310,717.80 = 113,871.60/x
  3. Step 3: Cross multiply
    207,298.80x = 310,717.80 × 113,871.60
  4. Step 4: Simplify right side
    207,298.80x = 35,381,933,034.48
  5. Step 5: Solve for x
    x = 35,381,933,034.48/207,298.80
  6. Step 6: Final answer
    x = 170,680.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.