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Finding the Fourth Proportional to 71,479.54, 98,646.18 and 41,270.38

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Solution

The fourth proportional to 71,479.54, 98,646.18 and 41,270.38 is: 56,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,479.54 : 98,646.18 = 41,270.38 : x
  2. Step 2: Convert to fraction form
    71,479.54/98,646.18 = 41,270.38/x
  3. Step 3: Cross multiply
    71,479.54x = 98,646.18 × 41,270.38
  4. Step 4: Simplify right side
    71,479.54x = 4,071,165,334.15
  5. Step 5: Solve for x
    x = 4,071,165,334.15/71,479.54
  6. Step 6: Final answer
    x = 56,955.67

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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.