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Finding the Fourth Proportional to 181,149.72, 250,016.40 and 105,698.04

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Solution

The fourth proportional to 181,149.72, 250,016.40 and 105,698.04 is: 145,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,149.72 : 250,016.40 = 105,698.04 : x
  2. Step 2: Convert to fraction form
    181,149.72/250,016.40 = 105,698.04/x
  3. Step 3: Cross multiply
    181,149.72x = 250,016.40 × 105,698.04
  4. Step 4: Simplify right side
    181,149.72x = 26,426,243,447.86
  5. Step 5: Solve for x
    x = 26,426,243,447.86/181,149.72
  6. Step 6: Final answer
    x = 145,880.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.