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Finding the Fourth Proportional to 545,159.26, 817,845.87 and 190,184.86

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Solution

The fourth proportional to 545,159.26, 817,845.87 and 190,184.86 is: 285,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,159.26 : 817,845.87 = 190,184.86 : x
  2. Step 2: Convert to fraction form
    545,159.26/817,845.87 = 190,184.86/x
  3. Step 3: Cross multiply
    545,159.26x = 817,845.87 × 190,184.86
  4. Step 4: Simplify right side
    545,159.26x = 155,541,902,287.53
  5. Step 5: Solve for x
    x = 155,541,902,287.53/545,159.26
  6. Step 6: Final answer
    x = 285,314.61

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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.