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Finding the Fourth Proportional to 247,365.78, 341,370.90 and 151,818.18

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Solution

The fourth proportional to 247,365.78, 341,370.90 and 151,818.18 is: 209,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,365.78 : 341,370.90 = 151,818.18 : x
  2. Step 2: Convert to fraction form
    247,365.78/341,370.90 = 151,818.18/x
  3. Step 3: Cross multiply
    247,365.78x = 341,370.90 × 151,818.18
  4. Step 4: Simplify right side
    247,365.78x = 51,826,308,742.96
  5. Step 5: Solve for x
    x = 51,826,308,742.96/247,365.78
  6. Step 6: Final answer
    x = 209,512.85

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1.5x scale

Why These Related Problems?

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