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Finding the Fourth Proportional to 293,889.30, 440,848.35 and 153,921.30

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Solution

The fourth proportional to 293,889.30, 440,848.35 and 153,921.30 is: 230,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,889.30 : 440,848.35 = 153,921.30 : x
  2. Step 2: Convert to fraction form
    293,889.30/440,848.35 = 153,921.30/x
  3. Step 3: Cross multiply
    293,889.30x = 440,848.35 × 153,921.30
  4. Step 4: Simplify right side
    293,889.30x = 67,855,951,134.86
  5. Step 5: Solve for x
    x = 67,855,951,134.86/293,889.30
  6. Step 6: Final answer
    x = 230,889.49

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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.