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Finding the Fourth Proportional to 63,412.40, 87,309.93 and 53,832.44

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Solution

The fourth proportional to 63,412.40, 87,309.93 and 53,832.44 is: 74,119.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,412.40 : 87,309.93 = 53,832.44 : x
  2. Step 2: Convert to fraction form
    63,412.40/87,309.93 = 53,832.44/x
  3. Step 3: Cross multiply
    63,412.40x = 87,309.93 × 53,832.44
  4. Step 4: Simplify right side
    63,412.40x = 4,700,106,568.13
  5. Step 5: Solve for x
    x = 4,700,106,568.13/63,412.40
  6. Step 6: Final answer
    x = 74,119.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.