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Finding the Fourth Proportional to 207,718.14, 286,650.60 and 112,224.54

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Solution

The fourth proportional to 207,718.14, 286,650.60 and 112,224.54 is: 154,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,718.14 : 286,650.60 = 112,224.54 : x
  2. Step 2: Convert to fraction form
    207,718.14/286,650.60 = 112,224.54/x
  3. Step 3: Cross multiply
    207,718.14x = 286,650.60 × 112,224.54
  4. Step 4: Simplify right side
    207,718.14x = 32,169,231,725.72
  5. Step 5: Solve for x
    x = 32,169,231,725.72/207,718.14
  6. Step 6: Final answer
    x = 154,869.63

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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.