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Finding the Fourth Proportional to 103,643.88, 155,470.68 and 33,528.66

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Solution

The fourth proportional to 103,643.88, 155,470.68 and 33,528.66 is: 50,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,643.88 : 155,470.68 = 33,528.66 : x
  2. Step 2: Convert to fraction form
    103,643.88/155,470.68 = 33,528.66/x
  3. Step 3: Cross multiply
    103,643.88x = 155,470.68 × 33,528.66
  4. Step 4: Simplify right side
    103,643.88x = 5,212,723,569.69
  5. Step 5: Solve for x
    x = 5,212,723,569.69/103,643.88
  6. Step 6: Final answer
    x = 50,294.56

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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.