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Finding the Fourth Proportional to 126,632.78, 174,751.08 and 70,044.11

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Solution

The fourth proportional to 126,632.78, 174,751.08 and 70,044.11 is: 96,659.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,632.78 : 174,751.08 = 70,044.11 : x
  2. Step 2: Convert to fraction form
    126,632.78/174,751.08 = 70,044.11/x
  3. Step 3: Cross multiply
    126,632.78x = 174,751.08 × 70,044.11
  4. Step 4: Simplify right side
    126,632.78x = 12,240,283,870.14
  5. Step 5: Solve for x
    x = 12,240,283,870.14/126,632.78
  6. Step 6: Final answer
    x = 96,659.68

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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.