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Finding the Fourth Proportional to 64,920.58, 97,421.19 and 41,563.78

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Solution

The fourth proportional to 64,920.58, 97,421.19 and 41,563.78 is: 62,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,920.58 : 97,421.19 = 41,563.78 : x
  2. Step 2: Convert to fraction form
    64,920.58/97,421.19 = 41,563.78/x
  3. Step 3: Cross multiply
    64,920.58x = 97,421.19 × 41,563.78
  4. Step 4: Simplify right side
    64,920.58x = 4,049,192,908.50
  5. Step 5: Solve for x
    x = 4,049,192,908.50/64,920.58
  6. Step 6: Final answer
    x = 62,371.48

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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.