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Finding the Fourth Proportional to 99,754.77, 149,544.54 and 40,640.16

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Solution

The fourth proportional to 99,754.77, 149,544.54 and 40,640.16 is: 60,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,754.77 : 149,544.54 = 40,640.16 : x
  2. Step 2: Convert to fraction form
    99,754.77/149,544.54 = 40,640.16/x
  3. Step 3: Cross multiply
    99,754.77x = 149,544.54 × 40,640.16
  4. Step 4: Simplify right side
    99,754.77x = 6,077,514,032.73
  5. Step 5: Solve for x
    x = 6,077,514,032.73/99,754.77
  6. Step 6: Final answer
    x = 60,924.55

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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.