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Finding the Fourth Proportional to 66,808.57, 100,083.16 and 59,710.54

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Solution

The fourth proportional to 66,808.57, 100,083.16 and 59,710.54 is: 89,449.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808.57 : 100,083.16 = 59,710.54 : x
  2. Step 2: Convert to fraction form
    66,808.57/100,083.16 = 59,710.54/x
  3. Step 3: Cross multiply
    66,808.57x = 100,083.16 × 59,710.54
  4. Step 4: Simplify right side
    66,808.57x = 5,976,019,528.51
  5. Step 5: Solve for x
    x = 5,976,019,528.51/66,808.57
  6. Step 6: Final answer
    x = 89,449.89

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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.