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Finding the Fourth Proportional to 107,110.88, 147,843.60 and 64,672.28

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Solution

The fourth proportional to 107,110.88, 147,843.60 and 64,672.28 is: 89,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,110.88 : 147,843.60 = 64,672.28 : x
  2. Step 2: Convert to fraction form
    107,110.88/147,843.60 = 64,672.28/x
  3. Step 3: Cross multiply
    107,110.88x = 147,843.60 × 64,672.28
  4. Step 4: Simplify right side
    107,110.88x = 9,561,382,695.41
  5. Step 5: Solve for x
    x = 9,561,382,695.41/107,110.88
  6. Step 6: Final answer
    x = 89,266.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.