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Finding the Fourth Proportional to 207,492.91, 311,250.40 and 65,349.30

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Solution

The fourth proportional to 207,492.91, 311,250.40 and 65,349.30 is: 98,027.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,492.91 : 311,250.40 = 65,349.30 : x
  2. Step 2: Convert to fraction form
    207,492.91/311,250.40 = 65,349.30/x
  3. Step 3: Cross multiply
    207,492.91x = 311,250.40 × 65,349.30
  4. Step 4: Simplify right side
    207,492.91x = 20,339,994,208.47
  5. Step 5: Solve for x
    x = 20,339,994,208.47/207,492.91
  6. Step 6: Final answer
    x = 98,027.42

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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.