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Finding the Fourth Proportional to 500,543.72, 750,809.25 and 121,467.57

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Solution

The fourth proportional to 500,543.72, 750,809.25 and 121,467.57 is: 182,199.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,543.72 : 750,809.25 = 121,467.57 : x
  2. Step 2: Convert to fraction form
    500,543.72/750,809.25 = 121,467.57/x
  3. Step 3: Cross multiply
    500,543.72x = 750,809.25 × 121,467.57
  4. Step 4: Simplify right side
    500,543.72x = 91,198,975,131.02
  5. Step 5: Solve for x
    x = 91,198,975,131.02/500,543.72
  6. Step 6: Final answer
    x = 182,199.82

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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.