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Finding the Fourth Proportional to 207,858.56, 286,844.69 and 112,365.43

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Solution

The fourth proportional to 207,858.56, 286,844.69 and 112,365.43 is: 155,064.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,858.56 : 286,844.69 = 112,365.43 : x
  2. Step 2: Convert to fraction form
    207,858.56/286,844.69 = 112,365.43/x
  3. Step 3: Cross multiply
    207,858.56x = 286,844.69 × 112,365.43
  4. Step 4: Simplify right side
    207,858.56x = 32,231,426,498.87
  5. Step 5: Solve for x
    x = 32,231,426,498.87/207,858.56
  6. Step 6: Final answer
    x = 155,064.23

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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.