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Finding the Fourth Proportional to 107,178.44, 147,895.58 and 61,871.01

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Solution

The fourth proportional to 107,178.44, 147,895.58 and 61,871.01 is: 85,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,178.44 : 147,895.58 = 61,871.01 : x
  2. Step 2: Convert to fraction form
    107,178.44/147,895.58 = 61,871.01/x
  3. Step 3: Cross multiply
    107,178.44x = 147,895.58 × 61,871.01
  4. Step 4: Simplify right side
    107,178.44x = 9,150,448,599.78
  5. Step 5: Solve for x
    x = 9,150,448,599.78/107,178.44
  6. Step 6: Final answer
    x = 85,375.84

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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.