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Finding the Fourth Proportional to 264,352.13, 396,543.61 and 74,796.64

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Solution

The fourth proportional to 264,352.13, 396,543.61 and 74,796.64 is: 112,199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,352.13 : 396,543.61 = 74,796.64 : x
  2. Step 2: Convert to fraction form
    264,352.13/396,543.61 = 74,796.64/x
  3. Step 3: Cross multiply
    264,352.13x = 396,543.61 × 74,796.64
  4. Step 4: Simplify right side
    264,352.13x = 29,660,129,641.47
  5. Step 5: Solve for x
    x = 29,660,129,641.47/264,352.13
  6. Step 6: Final answer
    x = 112,199.32

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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.