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Finding the Fourth Proportional to 199,394.89, 275,188.59 and 113,366.84

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Solution

The fourth proportional to 199,394.89, 275,188.59 and 113,366.84 is: 156,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,394.89 : 275,188.59 = 113,366.84 : x
  2. Step 2: Convert to fraction form
    199,394.89/275,188.59 = 113,366.84/x
  3. Step 3: Cross multiply
    199,394.89x = 275,188.59 × 113,366.84
  4. Step 4: Simplify right side
    199,394.89x = 31,197,259,476.41
  5. Step 5: Solve for x
    x = 31,197,259,476.41/199,394.89
  6. Step 6: Final answer
    x = 156,459.68

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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.