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Finding the Fourth Proportional to 101,069.48, 139,488.80 and 84,044.44

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Solution

The fourth proportional to 101,069.48, 139,488.80 and 84,044.44 is: 115,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,069.48 : 139,488.80 = 84,044.44 : x
  2. Step 2: Convert to fraction form
    101,069.48/139,488.80 = 84,044.44/x
  3. Step 3: Cross multiply
    101,069.48x = 139,488.80 × 84,044.44
  4. Step 4: Simplify right side
    101,069.48x = 11,723,258,082.27
  5. Step 5: Solve for x
    x = 11,723,258,082.27/101,069.48
  6. Step 6: Final answer
    x = 115,992.07

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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.