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Finding the Fourth Proportional to 104,911.98, 157,414.47 and 54,980.20

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Solution

The fourth proportional to 104,911.98, 157,414.47 and 54,980.20 is: 82,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,911.98 : 157,414.47 = 54,980.20 : x
  2. Step 2: Convert to fraction form
    104,911.98/157,414.47 = 54,980.20/x
  3. Step 3: Cross multiply
    104,911.98x = 157,414.47 × 54,980.20
  4. Step 4: Simplify right side
    104,911.98x = 8,654,679,043.49
  5. Step 5: Solve for x
    x = 8,654,679,043.49/104,911.98
  6. Step 6: Final answer
    x = 82,494.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.