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Finding the Fourth Proportional to 107,163.43, 147,886.22 and 61,843.32

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Solution

The fourth proportional to 107,163.43, 147,886.22 and 61,843.32 is: 85,344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,163.43 : 147,886.22 = 61,843.32 : x
  2. Step 2: Convert to fraction form
    107,163.43/147,886.22 = 61,843.32/x
  3. Step 3: Cross multiply
    107,163.43x = 147,886.22 × 61,843.32
  4. Step 4: Simplify right side
    107,163.43x = 9,145,774,981.66
  5. Step 5: Solve for x
    x = 9,145,774,981.66/107,163.43
  6. Step 6: Final answer
    x = 85,344.18

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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.