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Finding the Fourth Proportional to 71,551.17, 98,749.71 and 43,256.79

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Solution

The fourth proportional to 71,551.17, 98,749.71 and 43,256.79 is: 59,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,551.17 : 98,749.71 = 43,256.79 : x
  2. Step 2: Convert to fraction form
    71,551.17/98,749.71 = 43,256.79/x
  3. Step 3: Cross multiply
    71,551.17x = 98,749.71 × 43,256.79
  4. Step 4: Simplify right side
    71,551.17x = 4,271,595,468.03
  5. Step 5: Solve for x
    x = 4,271,595,468.03/71,551.17
  6. Step 6: Final answer
    x = 59,699.87

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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.