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Finding the Fourth Proportional to 186,630.60, 279,945.90 and 157,470.60

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Solution

The fourth proportional to 186,630.60, 279,945.90 and 157,470.60 is: 236,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,630.60 : 279,945.90 = 157,470.60 : x
  2. Step 2: Convert to fraction form
    186,630.60/279,945.90 = 157,470.60/x
  3. Step 3: Cross multiply
    186,630.60x = 279,945.90 × 157,470.60
  4. Step 4: Simplify right side
    186,630.60x = 44,083,248,840.54
  5. Step 5: Solve for x
    x = 44,083,248,840.54/186,630.60
  6. Step 6: Final answer
    x = 236,205.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.