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Finding the Fourth Proportional to 71,850.52, 99,166.74 and 41,655.16

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Solution

The fourth proportional to 71,850.52, 99,166.74 and 41,655.16 is: 57,491.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,850.52 : 99,166.74 = 41,655.16 : x
  2. Step 2: Convert to fraction form
    71,850.52/99,166.74 = 41,655.16/x
  3. Step 3: Cross multiply
    71,850.52x = 99,166.74 × 41,655.16
  4. Step 4: Simplify right side
    71,850.52x = 4,130,806,421.38
  5. Step 5: Solve for x
    x = 4,130,806,421.38/71,850.52
  6. Step 6: Final answer
    x = 57,491.67

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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.