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Finding the Fourth Proportional to 252,870.32, 379,174.80 and 92,905.40

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Solution

The fourth proportional to 252,870.32, 379,174.80 and 92,905.40 is: 139,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,870.32 : 379,174.80 = 92,905.40 : x
  2. Step 2: Convert to fraction form
    252,870.32/379,174.80 = 92,905.40/x
  3. Step 3: Cross multiply
    252,870.32x = 379,174.80 × 92,905.40
  4. Step 4: Simplify right side
    252,870.32x = 35,227,386,463.92
  5. Step 5: Solve for x
    x = 35,227,386,463.92/252,870.32
  6. Step 6: Final answer
    x = 139,310.09

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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.