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Finding the Fourth Proportional to 126,065.79, 173,968.44 and 68,705.58

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Solution

The fourth proportional to 126,065.79, 173,968.44 and 68,705.58 is: 94,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,065.79 : 173,968.44 = 68,705.58 : x
  2. Step 2: Convert to fraction form
    126,065.79/173,968.44 = 68,705.58/x
  3. Step 3: Cross multiply
    126,065.79x = 173,968.44 × 68,705.58
  4. Step 4: Simplify right side
    126,065.79x = 11,952,602,571.90
  5. Step 5: Solve for x
    x = 11,952,602,571.90/126,065.79
  6. Step 6: Final answer
    x = 94,812.42

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1.5x scale

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.