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Finding the Fourth Proportional to 121,357.82, 167,474.56 and 67,646.24

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Solution

The fourth proportional to 121,357.82, 167,474.56 and 67,646.24 is: 93,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,357.82 : 167,474.56 = 67,646.24 : x
  2. Step 2: Convert to fraction form
    121,357.82/167,474.56 = 67,646.24/x
  3. Step 3: Cross multiply
    121,357.82x = 167,474.56 × 67,646.24
  4. Step 4: Simplify right side
    121,357.82x = 11,329,024,279.65
  5. Step 5: Solve for x
    x = 11,329,024,279.65/121,357.82
  6. Step 6: Final answer
    x = 93,352.24

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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.