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Finding the Fourth Proportional to 251,304.71, 376,984.64 and 109,052.21

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Solution

The fourth proportional to 251,304.71, 376,984.64 and 109,052.21 is: 163,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,304.71 : 376,984.64 = 109,052.21 : x
  2. Step 2: Convert to fraction form
    251,304.71/376,984.64 = 109,052.21/x
  3. Step 3: Cross multiply
    251,304.71x = 376,984.64 × 109,052.21
  4. Step 4: Simplify right side
    251,304.71x = 41,111,005,697.87
  5. Step 5: Solve for x
    x = 41,111,005,697.87/251,304.71
  6. Step 6: Final answer
    x = 163,590.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.