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Finding the Fourth Proportional to 72,061, 108,091.98 and 22,813

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Solution

The fourth proportional to 72,061, 108,091.98 and 22,813 is: 34,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,061 : 108,091.98 = 22,813 : x
  2. Step 2: Convert to fraction form
    72,061/108,091.98 = 22,813/x
  3. Step 3: Cross multiply
    72,061x = 108,091.98 × 22,813
  4. Step 4: Simplify right side
    72,061x = 2,465,902,339.74
  5. Step 5: Solve for x
    x = 2,465,902,339.74/72,061
  6. Step 6: Final answer
    x = 34,219.65

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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.