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Finding the Fourth Proportional to 207,858.90, 286,843.50 and 112,364.76

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Solution

The fourth proportional to 207,858.90, 286,843.50 and 112,364.76 is: 155,062.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,858.90 : 286,843.50 = 112,364.76 : x
  2. Step 2: Convert to fraction form
    207,858.90/286,843.50 = 112,364.76/x
  3. Step 3: Cross multiply
    207,858.90x = 286,843.50 × 112,364.76
  4. Step 4: Simplify right side
    207,858.90x = 32,231,101,035.06
  5. Step 5: Solve for x
    x = 32,231,101,035.06/207,858.90
  6. Step 6: Final answer
    x = 155,062.41

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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.