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Finding the Fourth Proportional to 109,389, 150,956.97 and 59,088

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Solution

The fourth proportional to 109,389, 150,956.97 and 59,088 is: 81,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,389 : 150,956.97 = 59,088 : x
  2. Step 2: Convert to fraction form
    109,389/150,956.97 = 59,088/x
  3. Step 3: Cross multiply
    109,389x = 150,956.97 × 59,088
  4. Step 4: Simplify right side
    109,389x = 8,919,745,443.36
  5. Step 5: Solve for x
    x = 8,919,745,443.36/109,389
  6. Step 6: Final answer
    x = 81,541.52

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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.