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Finding the Fourth Proportional to 53,508.59, 80,189.06 and 40,346.49

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Solution

The fourth proportional to 53,508.59, 80,189.06 and 40,346.49 is: 60,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,508.59 : 80,189.06 = 40,346.49 : x
  2. Step 2: Convert to fraction form
    53,508.59/80,189.06 = 40,346.49/x
  3. Step 3: Cross multiply
    53,508.59x = 80,189.06 × 40,346.49
  4. Step 4: Simplify right side
    53,508.59x = 3,235,346,905.67
  5. Step 5: Solve for x
    x = 3,235,346,905.67/53,508.59
  6. Step 6: Final answer
    x = 60,464.07

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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.