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Finding the Fourth Proportional to 80,214.98, 110,715.26 and 53,358.62

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Solution

The fourth proportional to 80,214.98, 110,715.26 and 53,358.62 is: 73,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,214.98 : 110,715.26 = 53,358.62 : x
  2. Step 2: Convert to fraction form
    80,214.98/110,715.26 = 53,358.62/x
  3. Step 3: Cross multiply
    80,214.98x = 110,715.26 × 53,358.62
  4. Step 4: Simplify right side
    80,214.98x = 5,907,612,666.17
  5. Step 5: Solve for x
    x = 5,907,612,666.17/80,214.98
  6. Step 6: Final answer
    x = 73,647.25

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1.5x scale

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.