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Finding the Fourth Proportional to 207,967.21, 286,994.94 and 112,473.91

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Solution

The fourth proportional to 207,967.21, 286,994.94 and 112,473.91 is: 155,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,967.21 : 286,994.94 = 112,473.91 : x
  2. Step 2: Convert to fraction form
    207,967.21/286,994.94 = 112,473.91/x
  3. Step 3: Cross multiply
    207,967.21x = 286,994.94 × 112,473.91
  4. Step 4: Simplify right side
    207,967.21x = 32,279,442,756.31
  5. Step 5: Solve for x
    x = 32,279,442,756.31/207,967.21
  6. Step 6: Final answer
    x = 155,214.10

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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.