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Finding the Fourth Proportional to 126,451.84, 174,507.08 and 69,866.88

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Solution

The fourth proportional to 126,451.84, 174,507.08 and 69,866.88 is: 96,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,451.84 : 174,507.08 = 69,866.88 : x
  2. Step 2: Convert to fraction form
    126,451.84/174,507.08 = 69,866.88/x
  3. Step 3: Cross multiply
    126,451.84x = 174,507.08 × 69,866.88
  4. Step 4: Simplify right side
    126,451.84x = 12,192,265,217.51
  5. Step 5: Solve for x
    x = 12,192,265,217.51/126,451.84
  6. Step 6: Final answer
    x = 96,418.25

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1.5x scale

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.