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Finding the Fourth Proportional to 363,718.60, 545,227.94 and 186,309.16

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Solution

The fourth proportional to 363,718.60, 545,227.94 and 186,309.16 is: 279,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,718.60 : 545,227.94 = 186,309.16 : x
  2. Step 2: Convert to fraction form
    363,718.60/545,227.94 = 186,309.16/x
  3. Step 3: Cross multiply
    363,718.60x = 545,227.94 × 186,309.16
  4. Step 4: Simplify right side
    363,718.60x = 101,580,959,509.93
  5. Step 5: Solve for x
    x = 101,580,959,509.93/363,718.60
  6. Step 6: Final answer
    x = 279,284.48

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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.