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Finding the Fourth Proportional to 186,770.70, 278,699.34 and 166,641.84

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Solution

The fourth proportional to 186,770.70, 278,699.34 and 166,641.84 is: 248,663.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,770.70 : 278,699.34 = 166,641.84 : x
  2. Step 2: Convert to fraction form
    186,770.70/278,699.34 = 166,641.84/x
  3. Step 3: Cross multiply
    186,770.70x = 278,699.34 × 166,641.84
  4. Step 4: Simplify right side
    186,770.70x = 46,442,970,824.39
  5. Step 5: Solve for x
    x = 46,442,970,824.39/186,770.70
  6. Step 6: Final answer
    x = 248,663.04

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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.