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Finding the Fourth Proportional to 106,548.68, 159,573.98 and 84,212.12

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Solution

The fourth proportional to 106,548.68, 159,573.98 and 84,212.12 is: 126,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,548.68 : 159,573.98 = 84,212.12 : x
  2. Step 2: Convert to fraction form
    106,548.68/159,573.98 = 84,212.12/x
  3. Step 3: Cross multiply
    106,548.68x = 159,573.98 × 84,212.12
  4. Step 4: Simplify right side
    106,548.68x = 13,438,063,152.64
  5. Step 5: Solve for x
    x = 13,438,063,152.64/106,548.68
  6. Step 6: Final answer
    x = 126,121.35

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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.