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Finding the Fourth Proportional to 73,065.80, 109,404.30 and 46,627.40

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Solution

The fourth proportional to 73,065.80, 109,404.30 and 46,627.40 is: 69,817.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,065.80 : 109,404.30 = 46,627.40 : x
  2. Step 2: Convert to fraction form
    73,065.80/109,404.30 = 46,627.40/x
  3. Step 3: Cross multiply
    73,065.80x = 109,404.30 × 46,627.40
  4. Step 4: Simplify right side
    73,065.80x = 5,101,238,057.82
  5. Step 5: Solve for x
    x = 5,101,238,057.82/73,065.80
  6. Step 6: Final answer
    x = 69,817.04

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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.