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Finding the Fourth Proportional to 107,065.76, 147,745.08 and 59,318

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Solution

The fourth proportional to 107,065.76, 147,745.08 and 59,318 is: 81,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,065.76 : 147,745.08 = 59,318 : x
  2. Step 2: Convert to fraction form
    107,065.76/147,745.08 = 59,318/x
  3. Step 3: Cross multiply
    107,065.76x = 147,745.08 × 59,318
  4. Step 4: Simplify right side
    107,065.76x = 8,763,942,655.44
  5. Step 5: Solve for x
    x = 8,763,942,655.44/107,065.76
  6. Step 6: Final answer
    x = 81,855.70

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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.