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Finding the Fourth Proportional to 206,984.03, 310,476.07 and 64,840.38

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Solution

The fourth proportional to 206,984.03, 310,476.07 and 64,840.38 is: 97,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,984.03 : 310,476.07 = 64,840.38 : x
  2. Step 2: Convert to fraction form
    206,984.03/310,476.07 = 64,840.38/x
  3. Step 3: Cross multiply
    206,984.03x = 310,476.07 × 64,840.38
  4. Step 4: Simplify right side
    206,984.03x = 20,131,386,035.50
  5. Step 5: Solve for x
    x = 20,131,386,035.50/206,984.03
  6. Step 6: Final answer
    x = 97,260.58

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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.