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Finding the Fourth Proportional to 121,488.84, 167,653.24 and 67,041.43

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Solution

The fourth proportional to 121,488.84, 167,653.24 and 67,041.43 is: 92,516.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,488.84 : 167,653.24 = 67,041.43 : x
  2. Step 2: Convert to fraction form
    121,488.84/167,653.24 = 67,041.43/x
  3. Step 3: Cross multiply
    121,488.84x = 167,653.24 × 67,041.43
  4. Step 4: Simplify right side
    121,488.84x = 11,239,712,367.00
  5. Step 5: Solve for x
    x = 11,239,712,367.00/121,488.84
  6. Step 6: Final answer
    x = 92,516.42

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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.