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Finding the Fourth Proportional to 73,104, 109,656.54 and 17,700

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Solution

The fourth proportional to 73,104, 109,656.54 and 17,700 is: 26,550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104 : 109,656.54 = 17,700 : x
  2. Step 2: Convert to fraction form
    73,104/109,656.54 = 17,700/x
  3. Step 3: Cross multiply
    73,104x = 109,656.54 × 17,700
  4. Step 4: Simplify right side
    73,104x = 1,940,920,758
  5. Step 5: Solve for x
    x = 1,940,920,758/73,104
  6. Step 6: Final answer
    x = 26,550.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.