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Finding the Fourth Proportional to 107,711.67, 148,647.32 and 59,965.01

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Solution

The fourth proportional to 107,711.67, 148,647.32 and 59,965.01 is: 82,754.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,711.67 : 148,647.32 = 59,965.01 : x
  2. Step 2: Convert to fraction form
    107,711.67/148,647.32 = 59,965.01/x
  3. Step 3: Cross multiply
    107,711.67x = 148,647.32 × 59,965.01
  4. Step 4: Simplify right side
    107,711.67x = 8,913,636,987.21
  5. Step 5: Solve for x
    x = 8,913,636,987.21/107,711.67
  6. Step 6: Final answer
    x = 82,754.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.