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Finding the Fourth Proportional to 539,185.56, 808,749.18 and 165,209.64

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Solution

The fourth proportional to 539,185.56, 808,749.18 and 165,209.64 is: 247,805.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,185.56 : 808,749.18 = 165,209.64 : x
  2. Step 2: Convert to fraction form
    539,185.56/808,749.18 = 165,209.64/x
  3. Step 3: Cross multiply
    539,185.56x = 808,749.18 × 165,209.64
  4. Step 4: Simplify right side
    539,185.56x = 133,613,160,878.10
  5. Step 5: Solve for x
    x = 133,613,160,878.10/539,185.56
  6. Step 6: Final answer
    x = 247,805.53

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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.