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Finding the Fourth Proportional to 126,696, 174,841.74 and 70,108.59

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Solution

The fourth proportional to 126,696, 174,841.74 and 70,108.59 is: 96,750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,696 : 174,841.74 = 70,108.59 : x
  2. Step 2: Convert to fraction form
    126,696/174,841.74 = 70,108.59/x
  3. Step 3: Cross multiply
    126,696x = 174,841.74 × 70,108.59
  4. Step 4: Simplify right side
    126,696x = 12,257,907,864.55
  5. Step 5: Solve for x
    x = 12,257,907,864.55/126,696
  6. Step 6: Final answer
    x = 96,750.55

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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.