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Finding the Fourth Proportional to 119,139.99, 164,274.29 and 88,872.77

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Solution

The fourth proportional to 119,139.99, 164,274.29 and 88,872.77 is: 122,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,139.99 : 164,274.29 = 88,872.77 : x
  2. Step 2: Convert to fraction form
    119,139.99/164,274.29 = 88,872.77/x
  3. Step 3: Cross multiply
    119,139.99x = 164,274.29 × 88,872.77
  4. Step 4: Simplify right side
    119,139.99x = 14,599,509,926.35
  5. Step 5: Solve for x
    x = 14,599,509,926.35/119,139.99
  6. Step 6: Final answer
    x = 122,540.80

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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.