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Finding the Fourth Proportional to 262,008.74, 393,012.81 and 112,151.86

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Solution

The fourth proportional to 262,008.74, 393,012.81 and 112,151.86 is: 168,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,008.74 : 393,012.81 = 112,151.86 : x
  2. Step 2: Convert to fraction form
    262,008.74/393,012.81 = 112,151.86/x
  3. Step 3: Cross multiply
    262,008.74x = 393,012.81 × 112,151.86
  4. Step 4: Simplify right side
    262,008.74x = 44,077,116,662.79
  5. Step 5: Solve for x
    x = 44,077,116,662.79/262,008.74
  6. Step 6: Final answer
    x = 168,227.66

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1.5x scale

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.