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Finding the Fourth Proportional to 207,903.97, 286,907.29 and 112,410.44

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Solution

The fourth proportional to 207,903.97, 286,907.29 and 112,410.44 is: 155,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903.97 : 286,907.29 = 112,410.44 : x
  2. Step 2: Convert to fraction form
    207,903.97/286,907.29 = 112,410.44/x
  3. Step 3: Cross multiply
    207,903.97x = 286,907.29 × 112,410.44
  4. Step 4: Simplify right side
    207,903.97x = 32,251,374,708.11
  5. Step 5: Solve for x
    x = 32,251,374,708.11/207,903.97
  6. Step 6: Final answer
    x = 155,126.31

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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.