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Finding the Fourth Proportional to 71,340, 98,448.99 and 41,125.16

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Solution

The fourth proportional to 71,340, 98,448.99 and 41,125.16 is: 56,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,340 : 98,448.99 = 41,125.16 : x
  2. Step 2: Convert to fraction form
    71,340/98,448.99 = 41,125.16/x
  3. Step 3: Cross multiply
    71,340x = 98,448.99 × 41,125.16
  4. Step 4: Simplify right side
    71,340x = 4,048,729,973.34
  5. Step 5: Solve for x
    x = 4,048,729,973.34/71,340
  6. Step 6: Final answer
    x = 56,752.59

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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.