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Finding the Fourth Proportional to 126,686.64, 174,826.04 and 69,325.34

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Solution

The fourth proportional to 126,686.64, 174,826.04 and 69,325.34 is: 95,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,686.64 : 174,826.04 = 69,325.34 : x
  2. Step 2: Convert to fraction form
    126,686.64/174,826.04 = 69,325.34/x
  3. Step 3: Cross multiply
    126,686.64x = 174,826.04 × 69,325.34
  4. Step 4: Simplify right side
    126,686.64x = 12,119,873,443.10
  5. Step 5: Solve for x
    x = 12,119,873,443.10/126,686.64
  6. Step 6: Final answer
    x = 95,668.13

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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.