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Finding the Fourth Proportional to 207,528.60, 310,793.94 and 118,512.28

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Solution

The fourth proportional to 207,528.60, 310,793.94 and 118,512.28 is: 177,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,528.60 : 310,793.94 = 118,512.28 : x
  2. Step 2: Convert to fraction form
    207,528.60/310,793.94 = 118,512.28/x
  3. Step 3: Cross multiply
    207,528.60x = 310,793.94 × 118,512.28
  4. Step 4: Simplify right side
    207,528.60x = 36,832,898,439.58
  5. Step 5: Solve for x
    x = 36,832,898,439.58/207,528.60
  6. Step 6: Final answer
    x = 177,483.48

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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.