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Finding the Fourth Proportional to 386,000.83, 579,044 and 133,252.66

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Solution

The fourth proportional to 386,000.83, 579,044 and 133,252.66 is: 199,893.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,000.83 : 579,044 = 133,252.66 : x
  2. Step 2: Convert to fraction form
    386,000.83/579,044 = 133,252.66/x
  3. Step 3: Cross multiply
    386,000.83x = 579,044 × 133,252.66
  4. Step 4: Simplify right side
    386,000.83x = 77,159,153,257.04
  5. Step 5: Solve for x
    x = 77,159,153,257.04/386,000.83
  6. Step 6: Final answer
    x = 199,893.75

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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.