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Finding the Fourth Proportional to 103,700.70, 155,551.05 and 33,630.30

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Solution

The fourth proportional to 103,700.70, 155,551.05 and 33,630.30 is: 50,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,700.70 : 155,551.05 = 33,630.30 : x
  2. Step 2: Convert to fraction form
    103,700.70/155,551.05 = 33,630.30/x
  3. Step 3: Cross multiply
    103,700.70x = 155,551.05 × 33,630.30
  4. Step 4: Simplify right side
    103,700.70x = 5,231,228,476.82
  5. Step 5: Solve for x
    x = 5,231,228,476.82/103,700.70
  6. Step 6: Final answer
    x = 50,445.45

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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.