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Finding the Fourth Proportional to 493,367.32, 740,262.18 and 156,435.64

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Solution

The fourth proportional to 493,367.32, 740,262.18 and 156,435.64 is: 234,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,367.32 : 740,262.18 = 156,435.64 : x
  2. Step 2: Convert to fraction form
    493,367.32/740,262.18 = 156,435.64/x
  3. Step 3: Cross multiply
    493,367.32x = 740,262.18 × 156,435.64
  4. Step 4: Simplify right side
    493,367.32x = 115,803,387,896.10
  5. Step 5: Solve for x
    x = 115,803,387,896.10/493,367.32
  6. Step 6: Final answer
    x = 234,720.43

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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.