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Finding the Fourth Proportional to 186,118.16, 256,835.29 and 109,640.39

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Solution

The fourth proportional to 186,118.16, 256,835.29 and 109,640.39 is: 151,299.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,118.16 : 256,835.29 = 109,640.39 : x
  2. Step 2: Convert to fraction form
    186,118.16/256,835.29 = 109,640.39/x
  3. Step 3: Cross multiply
    186,118.16x = 256,835.29 × 109,640.39
  4. Step 4: Simplify right side
    186,118.16x = 28,159,520,813.16
  5. Step 5: Solve for x
    x = 28,159,520,813.16/186,118.16
  6. Step 6: Final answer
    x = 151,299.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.