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Finding the Fourth Proportional to 126,657.84, 174,781.08 and 70,068

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Solution

The fourth proportional to 126,657.84, 174,781.08 and 70,068 is: 96,690.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,657.84 : 174,781.08 = 70,068 : x
  2. Step 2: Convert to fraction form
    126,657.84/174,781.08 = 70,068/x
  3. Step 3: Cross multiply
    126,657.84x = 174,781.08 × 70,068
  4. Step 4: Simplify right side
    126,657.84x = 12,246,560,713.44
  5. Step 5: Solve for x
    x = 12,246,560,713.44/126,657.84
  6. Step 6: Final answer
    x = 96,690.11

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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.