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Finding the Fourth Proportional to 126,059.51, 173,962.16 and 68,698.86

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Solution

The fourth proportional to 126,059.51, 173,962.16 and 68,698.86 is: 94,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,059.51 : 173,962.16 = 68,698.86 : x
  2. Step 2: Convert to fraction form
    126,059.51/173,962.16 = 68,698.86/x
  3. Step 3: Cross multiply
    126,059.51x = 173,962.16 × 68,698.86
  4. Step 4: Simplify right side
    126,059.51x = 11,951,002,075.14
  5. Step 5: Solve for x
    x = 11,951,002,075.14/126,059.51
  6. Step 6: Final answer
    x = 94,804.45

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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.