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Finding the Fourth Proportional to 101,813.68, 152,517.54 and 79,522.69

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Solution

The fourth proportional to 101,813.68, 152,517.54 and 79,522.69 is: 119,125.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,813.68 : 152,517.54 = 79,522.69 : x
  2. Step 2: Convert to fraction form
    101,813.68/152,517.54 = 79,522.69/x
  3. Step 3: Cross multiply
    101,813.68x = 152,517.54 × 79,522.69
  4. Step 4: Simplify right side
    101,813.68x = 12,128,605,052.98
  5. Step 5: Solve for x
    x = 12,128,605,052.98/101,813.68
  6. Step 6: Final answer
    x = 119,125.50

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1.5x scale

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.