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Finding the Fourth Proportional to 186,678.54, 278,827.89 and 168,881.94

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Solution

The fourth proportional to 186,678.54, 278,827.89 and 168,881.94 is: 252,246.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,678.54 : 278,827.89 = 168,881.94 : x
  2. Step 2: Convert to fraction form
    186,678.54/278,827.89 = 168,881.94/x
  3. Step 3: Cross multiply
    186,678.54x = 278,827.89 × 168,881.94
  4. Step 4: Simplify right side
    186,678.54x = 47,088,994,989.31
  5. Step 5: Solve for x
    x = 47,088,994,989.31/186,678.54
  6. Step 6: Final answer
    x = 252,246.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.