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Finding the Fourth Proportional to 84,980.54, 117,271.67 and 47,253.98

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Solution

The fourth proportional to 84,980.54, 117,271.67 and 47,253.98 is: 65,209.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,980.54 : 117,271.67 = 47,253.98 : x
  2. Step 2: Convert to fraction form
    84,980.54/117,271.67 = 47,253.98/x
  3. Step 3: Cross multiply
    84,980.54x = 117,271.67 × 47,253.98
  4. Step 4: Simplify right side
    84,980.54x = 5,541,553,148.75
  5. Step 5: Solve for x
    x = 5,541,553,148.75/84,980.54
  6. Step 6: Final answer
    x = 65,209.67

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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.