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Finding the Fourth Proportional to 72,817.32, 109,225.98 and 22,901.79

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Solution

The fourth proportional to 72,817.32, 109,225.98 and 22,901.79 is: 34,352.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,817.32 : 109,225.98 = 22,901.79 : x
  2. Step 2: Convert to fraction form
    72,817.32/109,225.98 = 22,901.79/x
  3. Step 3: Cross multiply
    72,817.32x = 109,225.98 × 22,901.79
  4. Step 4: Simplify right side
    72,817.32x = 2,501,470,456.50
  5. Step 5: Solve for x
    x = 2,501,470,456.50/72,817.32
  6. Step 6: Final answer
    x = 34,352.69

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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.