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Finding the Fourth Proportional to 545,061.68, 817,723.38 and 171,084.68

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Solution

The fourth proportional to 545,061.68, 817,723.38 and 171,084.68 is: 256,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,061.68 : 817,723.38 = 171,084.68 : x
  2. Step 2: Convert to fraction form
    545,061.68/817,723.38 = 171,084.68/x
  3. Step 3: Cross multiply
    545,061.68x = 817,723.38 × 171,084.68
  4. Step 4: Simplify right side
    545,061.68x = 139,899,942,795.82
  5. Step 5: Solve for x
    x = 139,899,942,795.82/545,061.68
  6. Step 6: Final answer
    x = 256,668.09

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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.