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Finding the Fourth Proportional to 545,059.62, 817,623.99 and 171,097.38

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Solution

The fourth proportional to 545,059.62, 817,623.99 and 171,097.38 is: 256,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,059.62 : 817,623.99 = 171,097.38 : x
  2. Step 2: Convert to fraction form
    545,059.62/817,623.99 = 171,097.38/x
  3. Step 3: Cross multiply
    545,059.62x = 817,623.99 × 171,097.38
  4. Step 4: Simplify right side
    545,059.62x = 139,893,322,514.15
  5. Step 5: Solve for x
    x = 139,893,322,514.15/545,059.62
  6. Step 6: Final answer
    x = 256,656.92

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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.