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Finding the Fourth Proportional to 199,157.04, 298,719.18 and 65,993.76

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Solution

The fourth proportional to 199,157.04, 298,719.18 and 65,993.76 is: 98,985.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,157.04 : 298,719.18 = 65,993.76 : x
  2. Step 2: Convert to fraction form
    199,157.04/298,719.18 = 65,993.76/x
  3. Step 3: Cross multiply
    199,157.04x = 298,719.18 × 65,993.76
  4. Step 4: Simplify right side
    199,157.04x = 19,713,601,872.32
  5. Step 5: Solve for x
    x = 19,713,601,872.32/199,157.04
  6. Step 6: Final answer
    x = 98,985.21

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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.