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Finding the Fourth Proportional to 518,951.18, 778,773.04 and 181,991.58

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Solution

The fourth proportional to 518,951.18, 778,773.04 and 181,991.58 is: 273,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,951.18 : 778,773.04 = 181,991.58 : x
  2. Step 2: Convert to fraction form
    518,951.18/778,773.04 = 181,991.58/x
  3. Step 3: Cross multiply
    518,951.18x = 778,773.04 × 181,991.58
  4. Step 4: Simplify right side
    518,951.18x = 141,730,136,011.00
  5. Step 5: Solve for x
    x = 141,730,136,011.00/518,951.18
  6. Step 6: Final answer
    x = 273,108.80

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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.