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Finding the Fourth Proportional to 500,441.11, 750,666.53 and 126,464.11

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Solution

The fourth proportional to 500,441.11, 750,666.53 and 126,464.11 is: 189,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,441.11 : 750,666.53 = 126,464.11 : x
  2. Step 2: Convert to fraction form
    500,441.11/750,666.53 = 126,464.11/x
  3. Step 3: Cross multiply
    500,441.11x = 750,666.53 × 126,464.11
  4. Step 4: Simplify right side
    500,441.11x = 94,932,374,623.24
  5. Step 5: Solve for x
    x = 94,932,374,623.24/500,441.11
  6. Step 6: Final answer
    x = 189,697.39

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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.