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Finding the Fourth Proportional to 363,642.32, 545,495.08 and 110,979.76

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Solution

The fourth proportional to 363,642.32, 545,495.08 and 110,979.76 is: 166,479.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,642.32 : 545,495.08 = 110,979.76 : x
  2. Step 2: Convert to fraction form
    363,642.32/545,495.08 = 110,979.76/x
  3. Step 3: Cross multiply
    363,642.32x = 545,495.08 × 110,979.76
  4. Step 4: Simplify right side
    363,642.32x = 60,538,913,059.58
  5. Step 5: Solve for x
    x = 60,538,913,059.58/363,642.32
  6. Step 6: Final answer
    x = 166,479.28

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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.