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Finding the Fourth Proportional to 458,168.01, 687,087.32 and 158,567.28

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Solution

The fourth proportional to 458,168.01, 687,087.32 and 158,567.28 is: 237,793.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,168.01 : 687,087.32 = 158,567.28 : x
  2. Step 2: Convert to fraction form
    458,168.01/687,087.32 = 158,567.28/x
  3. Step 3: Cross multiply
    458,168.01x = 687,087.32 × 158,567.28
  4. Step 4: Simplify right side
    458,168.01x = 108,949,566,662.05
  5. Step 5: Solve for x
    x = 108,949,566,662.05/458,168.01
  6. Step 6: Final answer
    x = 237,793.92

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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.