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Finding the Fourth Proportional to 189,116.67, 261,087.81 and 125,541.39

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Solution

The fourth proportional to 189,116.67, 261,087.81 and 125,541.39 is: 173,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,116.67 : 261,087.81 = 125,541.39 : x
  2. Step 2: Convert to fraction form
    189,116.67/261,087.81 = 125,541.39/x
  3. Step 3: Cross multiply
    189,116.67x = 261,087.81 × 125,541.39
  4. Step 4: Simplify right side
    189,116.67x = 32,777,326,579.46
  5. Step 5: Solve for x
    x = 32,777,326,579.46/189,116.67
  6. Step 6: Final answer
    x = 173,318.02

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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.