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Finding the Fourth Proportional to 126,246, 174,223.13 and 69,661.02

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Solution

The fourth proportional to 126,246, 174,223.13 and 69,661.02 is: 96,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,246 : 174,223.13 = 69,661.02 : x
  2. Step 2: Convert to fraction form
    126,246/174,223.13 = 69,661.02/x
  3. Step 3: Cross multiply
    126,246x = 174,223.13 × 69,661.02
  4. Step 4: Simplify right side
    126,246x = 12,136,560,595.09
  5. Step 5: Solve for x
    x = 12,136,560,595.09/126,246
  6. Step 6: Final answer
    x = 96,134.22

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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.