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Finding the Fourth Proportional to 101,166.15, 139,609.31 and 55,844.16

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Solution

The fourth proportional to 101,166.15, 139,609.31 and 55,844.16 is: 77,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,166.15 : 139,609.31 = 55,844.16 : x
  2. Step 2: Convert to fraction form
    101,166.15/139,609.31 = 55,844.16/x
  3. Step 3: Cross multiply
    101,166.15x = 139,609.31 × 55,844.16
  4. Step 4: Simplify right side
    101,166.15x = 7,796,364,645.13
  5. Step 5: Solve for x
    x = 7,796,364,645.13/101,166.15
  6. Step 6: Final answer
    x = 77,064.95

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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.