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Finding the Fourth Proportional to 101,246.15, 139,719.03 and 55,927.06

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Solution

The fourth proportional to 101,246.15, 139,719.03 and 55,927.06 is: 77,178.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,246.15 : 139,719.03 = 55,927.06 : x
  2. Step 2: Convert to fraction form
    101,246.15/139,719.03 = 55,927.06/x
  3. Step 3: Cross multiply
    101,246.15x = 139,719.03 × 55,927.06
  4. Step 4: Simplify right side
    101,246.15x = 7,814,074,014.93
  5. Step 5: Solve for x
    x = 7,814,074,014.93/101,246.15
  6. Step 6: Final answer
    x = 77,178.97

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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.