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Finding the Fourth Proportional to 99,760.50, 149,640.75 and 37,387.26

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Solution

The fourth proportional to 99,760.50, 149,640.75 and 37,387.26 is: 56,080.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,760.50 : 149,640.75 = 37,387.26 : x
  2. Step 2: Convert to fraction form
    99,760.50/149,640.75 = 37,387.26/x
  3. Step 3: Cross multiply
    99,760.50x = 149,640.75 × 37,387.26
  4. Step 4: Simplify right side
    99,760.50x = 5,594,657,626.85
  5. Step 5: Solve for x
    x = 5,594,657,626.85/99,760.50
  6. Step 6: Final answer
    x = 56,080.89

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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.