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Finding the Fourth Proportional to 100,963.44, 151,277.76 and 61,400.88

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Solution

The fourth proportional to 100,963.44, 151,277.76 and 61,400.88 is: 91,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,963.44 : 151,277.76 = 61,400.88 : x
  2. Step 2: Convert to fraction form
    100,963.44/151,277.76 = 61,400.88/x
  3. Step 3: Cross multiply
    100,963.44x = 151,277.76 × 61,400.88
  4. Step 4: Simplify right side
    100,963.44x = 9,288,587,588.43
  5. Step 5: Solve for x
    x = 9,288,587,588.43/100,963.44
  6. Step 6: Final answer
    x = 91,999.52

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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.