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Finding the Fourth Proportional to 73,059.90, 109,589.85 and 67,875.90

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Solution

The fourth proportional to 73,059.90, 109,589.85 and 67,875.90 is: 101,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,059.90 : 109,589.85 = 67,875.90 : x
  2. Step 2: Convert to fraction form
    73,059.90/109,589.85 = 67,875.90/x
  3. Step 3: Cross multiply
    73,059.90x = 109,589.85 × 67,875.90
  4. Step 4: Simplify right side
    73,059.90x = 7,438,509,699.62
  5. Step 5: Solve for x
    x = 7,438,509,699.62/73,059.90
  6. Step 6: Final answer
    x = 101,813.85

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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.