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Finding the Fourth Proportional to 107,512.94, 148,299.30 and 84,844.68

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Solution

The fourth proportional to 107,512.94, 148,299.30 and 84,844.68 is: 117,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,512.94 : 148,299.30 = 84,844.68 : x
  2. Step 2: Convert to fraction form
    107,512.94/148,299.30 = 84,844.68/x
  3. Step 3: Cross multiply
    107,512.94x = 148,299.30 × 84,844.68
  4. Step 4: Simplify right side
    107,512.94x = 12,582,406,652.72
  5. Step 5: Solve for x
    x = 12,582,406,652.72/107,512.94
  6. Step 6: Final answer
    x = 117,031.56

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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.