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Finding the Fourth Proportional to 403,833.01, 605,632.88 and 137,587.63

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Solution

The fourth proportional to 403,833.01, 605,632.88 and 137,587.63 is: 206,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,833.01 : 605,632.88 = 137,587.63 : x
  2. Step 2: Convert to fraction form
    403,833.01/605,632.88 = 137,587.63/x
  3. Step 3: Cross multiply
    403,833.01x = 605,632.88 × 137,587.63
  4. Step 4: Simplify right side
    403,833.01x = 83,327,592,609.27
  5. Step 5: Solve for x
    x = 83,327,592,609.27/403,833.01
  6. Step 6: Final answer
    x = 206,341.71

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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.