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Finding the Fourth Proportional to 199,043.64, 298,346.40 and 86,592.96

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Solution

The fourth proportional to 199,043.64, 298,346.40 and 86,592.96 is: 129,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,043.64 : 298,346.40 = 86,592.96 : x
  2. Step 2: Convert to fraction form
    199,043.64/298,346.40 = 86,592.96/x
  3. Step 3: Cross multiply
    199,043.64x = 298,346.40 × 86,592.96
  4. Step 4: Simplify right side
    199,043.64x = 25,834,697,881.34
  5. Step 5: Solve for x
    x = 25,834,697,881.34/199,043.64
  6. Step 6: Final answer
    x = 129,794.14

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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.