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Finding the Fourth Proportional to 199,367.10, 299,103.45 and 86,999.10

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Solution

The fourth proportional to 199,367.10, 299,103.45 and 86,999.10 is: 130,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,367.10 : 299,103.45 = 86,999.10 : x
  2. Step 2: Convert to fraction form
    199,367.10/299,103.45 = 86,999.10/x
  3. Step 3: Cross multiply
    199,367.10x = 299,103.45 × 86,999.10
  4. Step 4: Simplify right side
    199,367.10x = 26,021,730,956.90
  5. Step 5: Solve for x
    x = 26,021,730,956.90/199,367.10
  6. Step 6: Final answer
    x = 130,521.69

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1.5x scale

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.