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Finding the Fourth Proportional to 71,992.49, 99,303.39 and 43,698.18

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Solution

The fourth proportional to 71,992.49, 99,303.39 and 43,698.18 is: 60,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,992.49 : 99,303.39 = 43,698.18 : x
  2. Step 2: Convert to fraction form
    71,992.49/99,303.39 = 43,698.18/x
  3. Step 3: Cross multiply
    71,992.49x = 99,303.39 × 43,698.18
  4. Step 4: Simplify right side
    71,992.49x = 4,339,377,474.12
  5. Step 5: Solve for x
    x = 4,339,377,474.12/71,992.49
  6. Step 6: Final answer
    x = 60,275.41

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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.