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Finding the Fourth Proportional to 71,135.96, 98,213.38 and 45,653.30

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Solution

The fourth proportional to 71,135.96, 98,213.38 and 45,653.30 is: 63,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,135.96 : 98,213.38 = 45,653.30 : x
  2. Step 2: Convert to fraction form
    71,135.96/98,213.38 = 45,653.30/x
  3. Step 3: Cross multiply
    71,135.96x = 98,213.38 × 45,653.30
  4. Step 4: Simplify right side
    71,135.96x = 4,483,764,901.15
  5. Step 5: Solve for x
    x = 4,483,764,901.15/71,135.96
  6. Step 6: Final answer
    x = 63,030.92

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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.