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Finding the Fourth Proportional to 126,656.64, 174,778.92 and 70,064.64

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Solution

The fourth proportional to 126,656.64, 174,778.92 and 70,064.64 is: 96,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,656.64 : 174,778.92 = 70,064.64 : x
  2. Step 2: Convert to fraction form
    126,656.64/174,778.92 = 70,064.64/x
  3. Step 3: Cross multiply
    126,656.64x = 174,778.92 × 70,064.64
  4. Step 4: Simplify right side
    126,656.64x = 12,245,822,109.39
  5. Step 5: Solve for x
    x = 12,245,822,109.39/126,656.64
  6. Step 6: Final answer
    x = 96,685.20

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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.