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Finding the Fourth Proportional to 323,681.08, 485,590.92 and 113,325.88

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Solution

The fourth proportional to 323,681.08, 485,590.92 and 113,325.88 is: 170,013.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,681.08 : 485,590.92 = 113,325.88 : x
  2. Step 2: Convert to fraction form
    323,681.08/485,590.92 = 113,325.88/x
  3. Step 3: Cross multiply
    323,681.08x = 485,590.92 × 113,325.88
  4. Step 4: Simplify right side
    323,681.08x = 55,030,018,329.01
  5. Step 5: Solve for x
    x = 55,030,018,329.01/323,681.08
  6. Step 6: Final answer
    x = 170,013.08

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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.