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Finding the Fourth Proportional to 111,008.92, 166,578.98 and 40,937.44

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Solution

The fourth proportional to 111,008.92, 166,578.98 and 40,937.44 is: 61,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,008.92 : 166,578.98 = 40,937.44 : x
  2. Step 2: Convert to fraction form
    111,008.92/166,578.98 = 40,937.44/x
  3. Step 3: Cross multiply
    111,008.92x = 166,578.98 × 40,937.44
  4. Step 4: Simplify right side
    111,008.92x = 6,819,316,999.01
  5. Step 5: Solve for x
    x = 6,819,316,999.01/111,008.92
  6. Step 6: Final answer
    x = 61,430.35

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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.