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Finding the Fourth Proportional to 205,647.30, 308,492.82 and 65,373.12

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Solution

The fourth proportional to 205,647.30, 308,492.82 and 65,373.12 is: 98,066.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,647.30 : 308,492.82 = 65,373.12 : x
  2. Step 2: Convert to fraction form
    205,647.30/308,492.82 = 65,373.12/x
  3. Step 3: Cross multiply
    205,647.30x = 308,492.82 × 65,373.12
  4. Step 4: Simplify right side
    205,647.30x = 20,167,138,141.00
  5. Step 5: Solve for x
    x = 20,167,138,141.00/205,647.30
  6. Step 6: Final answer
    x = 98,066.63

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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.