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Finding the Fourth Proportional to 85,536.89, 118,040.20 and 47,298.11

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Solution

The fourth proportional to 85,536.89, 118,040.20 and 47,298.11 is: 65,270.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536.89 : 118,040.20 = 47,298.11 : x
  2. Step 2: Convert to fraction form
    85,536.89/118,040.20 = 47,298.11/x
  3. Step 3: Cross multiply
    85,536.89x = 118,040.20 × 47,298.11
  4. Step 4: Simplify right side
    85,536.89x = 5,583,077,655.58
  5. Step 5: Solve for x
    x = 5,583,077,655.58/85,536.89
  6. Step 6: Final answer
    x = 65,270.99

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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.