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Finding the Fourth Proportional to 160,631.36, 240,958.87 and 42,301.88

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Solution

The fourth proportional to 160,631.36, 240,958.87 and 42,301.88 is: 63,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,631.36 : 240,958.87 = 42,301.88 : x
  2. Step 2: Convert to fraction form
    160,631.36/240,958.87 = 42,301.88/x
  3. Step 3: Cross multiply
    160,631.36x = 240,958.87 × 42,301.88
  4. Step 4: Simplify right side
    160,631.36x = 10,193,011,893.13
  5. Step 5: Solve for x
    x = 10,193,011,893.13/160,631.36
  6. Step 6: Final answer
    x = 63,455.93

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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.