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Finding the Fourth Proportional to 111,963.42, 154,541.30 and 73,750.86

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Solution

The fourth proportional to 111,963.42, 154,541.30 and 73,750.86 is: 101,797.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,963.42 : 154,541.30 = 73,750.86 : x
  2. Step 2: Convert to fraction form
    111,963.42/154,541.30 = 73,750.86/x
  3. Step 3: Cross multiply
    111,963.42x = 154,541.30 × 73,750.86
  4. Step 4: Simplify right side
    111,963.42x = 11,397,553,411.76
  5. Step 5: Solve for x
    x = 11,397,553,411.76/111,963.42
  6. Step 6: Final answer
    x = 101,797.12

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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.