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Finding the Fourth Proportional to 104,492.91, 144,209.12 and 59,178.81

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Solution

The fourth proportional to 104,492.91, 144,209.12 and 59,178.81 is: 81,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,492.91 : 144,209.12 = 59,178.81 : x
  2. Step 2: Convert to fraction form
    104,492.91/144,209.12 = 59,178.81/x
  3. Step 3: Cross multiply
    104,492.91x = 144,209.12 × 59,178.81
  4. Step 4: Simplify right side
    104,492.91x = 8,534,123,816.85
  5. Step 5: Solve for x
    x = 8,534,123,816.85/104,492.91
  6. Step 6: Final answer
    x = 81,671.80

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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.