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Finding the Fourth Proportional to 265,120.74, 365,879.43 and 151,943.76

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Solution

The fourth proportional to 265,120.74, 365,879.43 and 151,943.76 is: 209,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,120.74 : 365,879.43 = 151,943.76 : x
  2. Step 2: Convert to fraction form
    265,120.74/365,879.43 = 151,943.76/x
  3. Step 3: Cross multiply
    265,120.74x = 365,879.43 × 151,943.76
  4. Step 4: Simplify right side
    265,120.74x = 55,593,096,300.86
  5. Step 5: Solve for x
    x = 55,593,096,300.86/265,120.74
  6. Step 6: Final answer
    x = 209,689.73

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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.