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Finding the Fourth Proportional to 126,654.88, 174,788.88 and 70,065.28

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Solution

The fourth proportional to 126,654.88, 174,788.88 and 70,065.28 is: 96,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,654.88 : 174,788.88 = 70,065.28 : x
  2. Step 2: Convert to fraction form
    126,654.88/174,788.88 = 70,065.28/x
  3. Step 3: Cross multiply
    126,654.88x = 174,788.88 × 70,065.28
  4. Step 4: Simplify right side
    126,654.88x = 12,246,631,818.09
  5. Step 5: Solve for x
    x = 12,246,631,818.09/126,654.88
  6. Step 6: Final answer
    x = 96,692.93

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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.