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Finding the Fourth Proportional to 252,415.72, 378,572.65 and 92,437.04

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Solution

The fourth proportional to 252,415.72, 378,572.65 and 92,437.04 is: 138,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,415.72 : 378,572.65 = 92,437.04 : x
  2. Step 2: Convert to fraction form
    252,415.72/378,572.65 = 92,437.04/x
  3. Step 3: Cross multiply
    252,415.72x = 378,572.65 × 92,437.04
  4. Step 4: Simplify right side
    252,415.72x = 34,994,134,728.77
  5. Step 5: Solve for x
    x = 34,994,134,728.77/252,415.72
  6. Step 6: Final answer
    x = 138,636.91

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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.