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Finding the Fourth Proportional to 115,473.81, 159,319.05 and 67,066.41

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Solution

The fourth proportional to 115,473.81, 159,319.05 and 67,066.41 is: 92,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,473.81 : 159,319.05 = 67,066.41 : x
  2. Step 2: Convert to fraction form
    115,473.81/159,319.05 = 67,066.41/x
  3. Step 3: Cross multiply
    115,473.81x = 159,319.05 × 67,066.41
  4. Step 4: Simplify right side
    115,473.81x = 10,684,956,728.11
  5. Step 5: Solve for x
    x = 10,684,956,728.11/115,473.81
  6. Step 6: Final answer
    x = 92,531.43

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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.