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Finding the Fourth Proportional to 72,099.32, 98,774.44 and 69,403.92

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Solution

The fourth proportional to 72,099.32, 98,774.44 and 69,403.92 is: 95,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,099.32 : 98,774.44 = 69,403.92 : x
  2. Step 2: Convert to fraction form
    72,099.32/98,774.44 = 69,403.92/x
  3. Step 3: Cross multiply
    72,099.32x = 98,774.44 × 69,403.92
  4. Step 4: Simplify right side
    72,099.32x = 6,855,333,331.80
  5. Step 5: Solve for x
    x = 6,855,333,331.80/72,099.32
  6. Step 6: Final answer
    x = 95,081.80

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.