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Finding the Fourth Proportional to 126,482, 174,530.04 and 69,885.68

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Solution

The fourth proportional to 126,482, 174,530.04 and 69,885.68 is: 96,433.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,482 : 174,530.04 = 69,885.68 : x
  2. Step 2: Convert to fraction form
    126,482/174,530.04 = 69,885.68/x
  3. Step 3: Cross multiply
    126,482x = 174,530.04 × 69,885.68
  4. Step 4: Simplify right side
    126,482x = 12,197,150,525.83
  5. Step 5: Solve for x
    x = 12,197,150,525.83/126,482
  6. Step 6: Final answer
    x = 96,433.88

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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.