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Finding the Fourth Proportional to 126,604.88, 174,715.86 and 70,017.20

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Solution

The fourth proportional to 126,604.88, 174,715.86 and 70,017.20 is: 96,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,604.88 : 174,715.86 = 70,017.20 : x
  2. Step 2: Convert to fraction form
    126,604.88/174,715.86 = 70,017.20/x
  3. Step 3: Cross multiply
    126,604.88x = 174,715.86 × 70,017.20
  4. Step 4: Simplify right side
    126,604.88x = 12,233,115,312.79
  5. Step 5: Solve for x
    x = 12,233,115,312.79/126,604.88
  6. Step 6: Final answer
    x = 96,624.36

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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.