Home / 199,654.06-299,381.19-66,487.90

Finding the Fourth Proportional to 199,654.06, 299,381.19 and 66,487.90

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Solution

The fourth proportional to 199,654.06, 299,381.19 and 66,487.90 is: 99,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,654.06 : 299,381.19 = 66,487.90 : x
  2. Step 2: Convert to fraction form
    199,654.06/299,381.19 = 66,487.90/x
  3. Step 3: Cross multiply
    199,654.06x = 299,381.19 × 66,487.90
  4. Step 4: Simplify right side
    199,654.06x = 19,905,226,622.60
  5. Step 5: Solve for x
    x = 19,905,226,622.60/199,654.06
  6. Step 6: Final answer
    x = 99,698.58

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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.