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Finding the Fourth Proportional to 101,198.25, 139,655.61 and 55,876.32

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Solution

The fourth proportional to 101,198.25, 139,655.61 and 55,876.32 is: 77,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,198.25 : 139,655.61 = 55,876.32 : x
  2. Step 2: Convert to fraction form
    101,198.25/139,655.61 = 55,876.32/x
  3. Step 3: Cross multiply
    101,198.25x = 139,655.61 × 55,876.32
  4. Step 4: Simplify right side
    101,198.25x = 7,803,441,554.16
  5. Step 5: Solve for x
    x = 7,803,441,554.16/101,198.25
  6. Step 6: Final answer
    x = 77,110.44

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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.