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Finding the Fourth Proportional to 168,686.62, 232,636.76 and 139,960.81

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Solution

The fourth proportional to 168,686.62, 232,636.76 and 139,960.81 is: 193,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,686.62 : 232,636.76 = 139,960.81 : x
  2. Step 2: Convert to fraction form
    168,686.62/232,636.76 = 139,960.81/x
  3. Step 3: Cross multiply
    168,686.62x = 232,636.76 × 139,960.81
  4. Step 4: Simplify right side
    168,686.62x = 32,560,028,959.92
  5. Step 5: Solve for x
    x = 32,560,028,959.92/168,686.62
  6. Step 6: Final answer
    x = 193,020.82

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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.