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Finding the Fourth Proportional to 103,523.90, 155,307.45 and 33,410.30

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Solution

The fourth proportional to 103,523.90, 155,307.45 and 33,410.30 is: 50,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,523.90 : 155,307.45 = 33,410.30 : x
  2. Step 2: Convert to fraction form
    103,523.90/155,307.45 = 33,410.30/x
  3. Step 3: Cross multiply
    103,523.90x = 155,307.45 × 33,410.30
  4. Step 4: Simplify right side
    103,523.90x = 5,188,868,496.74
  5. Step 5: Solve for x
    x = 5,188,868,496.74/103,523.90
  6. Step 6: Final answer
    x = 50,122.42

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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.