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Finding the Fourth Proportional to 126,910.65, 175,090.35 and 75,924.84

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Solution

The fourth proportional to 126,910.65, 175,090.35 and 75,924.84 is: 104,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,910.65 : 175,090.35 = 75,924.84 : x
  2. Step 2: Convert to fraction form
    126,910.65/175,090.35 = 75,924.84/x
  3. Step 3: Cross multiply
    126,910.65x = 175,090.35 × 75,924.84
  4. Step 4: Simplify right side
    126,910.65x = 13,293,706,809.29
  5. Step 5: Solve for x
    x = 13,293,706,809.29/126,910.65
  6. Step 6: Final answer
    x = 104,748.55

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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.