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Finding the Fourth Proportional to 199,390.44, 299,118.06 and 66,248.04

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Solution

The fourth proportional to 199,390.44, 299,118.06 and 66,248.04 is: 99,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,390.44 : 299,118.06 = 66,248.04 : x
  2. Step 2: Convert to fraction form
    199,390.44/299,118.06 = 66,248.04/x
  3. Step 3: Cross multiply
    199,390.44x = 299,118.06 × 66,248.04
  4. Step 4: Simplify right side
    199,390.44x = 19,815,985,203.60
  5. Step 5: Solve for x
    x = 19,815,985,203.60/199,390.44
  6. Step 6: Final answer
    x = 99,382.82

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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.