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Finding the Fourth Proportional to 186,187.55, 256,939.92 and 101,305.22

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Solution

The fourth proportional to 186,187.55, 256,939.92 and 101,305.22 is: 139,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,187.55 : 256,939.92 = 101,305.22 : x
  2. Step 2: Convert to fraction form
    186,187.55/256,939.92 = 101,305.22/x
  3. Step 3: Cross multiply
    186,187.55x = 256,939.92 × 101,305.22
  4. Step 4: Simplify right side
    186,187.55x = 26,029,353,837.68
  5. Step 5: Solve for x
    x = 26,029,353,837.68/186,187.55
  6. Step 6: Final answer
    x = 139,801.80

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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.