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Finding the Fourth Proportional to 445,301.72, 668,305.22 and 232,130.73

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Solution

The fourth proportional to 445,301.72, 668,305.22 and 232,130.73 is: 348,379.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,301.72 : 668,305.22 = 232,130.73 : x
  2. Step 2: Convert to fraction form
    445,301.72/668,305.22 = 232,130.73/x
  3. Step 3: Cross multiply
    445,301.72x = 668,305.22 × 232,130.73
  4. Step 4: Simplify right side
    445,301.72x = 155,134,176,167.69
  5. Step 5: Solve for x
    x = 155,134,176,167.69/445,301.72
  6. Step 6: Final answer
    x = 348,379.92

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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.