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Finding the Fourth Proportional to 206,747.96, 310,130.13 and 64,688.64

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Solution

The fourth proportional to 206,747.96, 310,130.13 and 64,688.64 is: 97,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,747.96 : 310,130.13 = 64,688.64 : x
  2. Step 2: Convert to fraction form
    206,747.96/310,130.13 = 64,688.64/x
  3. Step 3: Cross multiply
    206,747.96x = 310,130.13 × 64,688.64
  4. Step 4: Simplify right side
    206,747.96x = 20,061,895,412.32
  5. Step 5: Solve for x
    x = 20,061,895,412.32/206,747.96
  6. Step 6: Final answer
    x = 97,035.52

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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.