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Finding the Fourth Proportional to 363,516.22, 545,385.62 and 186,148.81

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Solution

The fourth proportional to 363,516.22, 545,385.62 and 186,148.81 is: 279,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,516.22 : 545,385.62 = 186,148.81 : x
  2. Step 2: Convert to fraction form
    363,516.22/545,385.62 = 186,148.81/x
  3. Step 3: Cross multiply
    363,516.22x = 545,385.62 × 186,148.81
  4. Step 4: Simplify right side
    363,516.22x = 101,522,884,154.11
  5. Step 5: Solve for x
    x = 101,522,884,154.11/363,516.22
  6. Step 6: Final answer
    x = 279,280.20

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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.