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Finding the Fourth Proportional to 73,520, 110,281.08 and 18,116

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Solution

The fourth proportional to 73,520, 110,281.08 and 18,116 is: 27,174.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,520 : 110,281.08 = 18,116 : x
  2. Step 2: Convert to fraction form
    73,520/110,281.08 = 18,116/x
  3. Step 3: Cross multiply
    73,520x = 110,281.08 × 18,116
  4. Step 4: Simplify right side
    73,520x = 1,997,852,045.28
  5. Step 5: Solve for x
    x = 1,997,852,045.28/73,520
  6. Step 6: Final answer
    x = 27,174.27

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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.