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Finding the Fourth Proportional to 103,656.45, 155,484.68 and 33,542.85

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Solution

The fourth proportional to 103,656.45, 155,484.68 and 33,542.85 is: 50,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,656.45 : 155,484.68 = 33,542.85 : x
  2. Step 2: Convert to fraction form
    103,656.45/155,484.68 = 33,542.85/x
  3. Step 3: Cross multiply
    103,656.45x = 155,484.68 × 33,542.85
  4. Step 4: Simplify right side
    103,656.45x = 5,215,399,130.82
  5. Step 5: Solve for x
    x = 5,215,399,130.82/103,656.45
  6. Step 6: Final answer
    x = 50,314.28

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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.