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Finding the Fourth Proportional to 545,056.62, 817,619.49 and 171,094.38

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Solution

The fourth proportional to 545,056.62, 817,619.49 and 171,094.38 is: 256,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,056.62 : 817,619.49 = 171,094.38 : x
  2. Step 2: Convert to fraction form
    545,056.62/817,619.49 = 171,094.38/x
  3. Step 3: Cross multiply
    545,056.62x = 817,619.49 × 171,094.38
  4. Step 4: Simplify right side
    545,056.62x = 139,890,099,717.47
  5. Step 5: Solve for x
    x = 139,890,099,717.47/545,056.62
  6. Step 6: Final answer
    x = 256,652.42

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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.