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Finding the Fourth Proportional to 126,486.96, 174,588.48 and 83,497.92

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Solution

The fourth proportional to 126,486.96, 174,588.48 and 83,497.92 is: 115,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,486.96 : 174,588.48 = 83,497.92 : x
  2. Step 2: Convert to fraction form
    126,486.96/174,588.48 = 83,497.92/x
  3. Step 3: Cross multiply
    126,486.96x = 174,588.48 × 83,497.92
  4. Step 4: Simplify right side
    126,486.96x = 14,577,774,935.96
  5. Step 5: Solve for x
    x = 14,577,774,935.96/126,486.96
  6. Step 6: Final answer
    x = 115,251.21

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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.