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Finding the Fourth Proportional to 111,889.95, 168,447.41 and 102,092.19

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Solution

The fourth proportional to 111,889.95, 168,447.41 and 102,092.19 is: 153,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,889.95 : 168,447.41 = 102,092.19 : x
  2. Step 2: Convert to fraction form
    111,889.95/168,447.41 = 102,092.19/x
  3. Step 3: Cross multiply
    111,889.95x = 168,447.41 × 102,092.19
  4. Step 4: Simplify right side
    111,889.95x = 17,197,164,476.27
  5. Step 5: Solve for x
    x = 17,197,164,476.27/111,889.95
  6. Step 6: Final answer
    x = 153,697.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.