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Finding the Fourth Proportional to 204,717.72, 307,087.58 and 64,487.32

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Solution

The fourth proportional to 204,717.72, 307,087.58 and 64,487.32 is: 96,734.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,717.72 : 307,087.58 = 64,487.32 : x
  2. Step 2: Convert to fraction form
    204,717.72/307,087.58 = 64,487.32/x
  3. Step 3: Cross multiply
    204,717.72x = 307,087.58 × 64,487.32
  4. Step 4: Simplify right side
    204,717.72x = 19,803,255,039.49
  5. Step 5: Solve for x
    x = 19,803,255,039.49/204,717.72
  6. Step 6: Final answer
    x = 96,734.45

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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.