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Finding the Fourth Proportional to 103,601.51, 155,398.62 and 33,479

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Solution

The fourth proportional to 103,601.51, 155,398.62 and 33,479 is: 50,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,601.51 : 155,398.62 = 33,479 : x
  2. Step 2: Convert to fraction form
    103,601.51/155,398.62 = 33,479/x
  3. Step 3: Cross multiply
    103,601.51x = 155,398.62 × 33,479
  4. Step 4: Simplify right side
    103,601.51x = 5,202,590,398.98
  5. Step 5: Solve for x
    x = 5,202,590,398.98/103,601.51
  6. Step 6: Final answer
    x = 50,217.32

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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.