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Finding the Fourth Proportional to 111,834, 154,330.92 and 61,531.92

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Solution

The fourth proportional to 111,834, 154,330.92 and 61,531.92 is: 84,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,834 : 154,330.92 = 61,531.92 : x
  2. Step 2: Convert to fraction form
    111,834/154,330.92 = 61,531.92/x
  3. Step 3: Cross multiply
    111,834x = 154,330.92 × 61,531.92
  4. Step 4: Simplify right side
    111,834x = 9,496,277,822.97
  5. Step 5: Solve for x
    x = 9,496,277,822.97/111,834
  6. Step 6: Final answer
    x = 84,914.05

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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.