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Finding the Fourth Proportional to 107,686.62, 148,611 and 59,293.67

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Solution

The fourth proportional to 107,686.62, 148,611 and 59,293.67 is: 81,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,686.62 : 148,611 = 59,293.67 : x
  2. Step 2: Convert to fraction form
    107,686.62/148,611 = 59,293.67/x
  3. Step 3: Cross multiply
    107,686.62x = 148,611 × 59,293.67
  4. Step 4: Simplify right side
    107,686.62x = 8,811,690,849.32
  5. Step 5: Solve for x
    x = 8,811,690,849.32/107,686.62
  6. Step 6: Final answer
    x = 81,827.17

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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.