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Finding the Fourth Proportional to 111,868.00, 154,343.00 and 63,461.90

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Solution

The fourth proportional to 111,868.00, 154,343.00 and 63,461.90 is: 87,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,868.00 : 154,343.00 = 63,461.90 : x
  2. Step 2: Convert to fraction form
    111,868.00/154,343.00 = 63,461.90/x
  3. Step 3: Cross multiply
    111,868.00x = 154,343.00 × 63,461.90
  4. Step 4: Simplify right side
    111,868.00x = 9,794,899,418.64
  5. Step 5: Solve for x
    x = 9,794,899,418.64/111,868.00
  6. Step 6: Final answer
    x = 87,557.65

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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.