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Finding the Fourth Proportional to 478,168.02, 717,079.73 and 158,260.86

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Solution

The fourth proportional to 478,168.02, 717,079.73 and 158,260.86 is: 237,334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,168.02 : 717,079.73 = 158,260.86 : x
  2. Step 2: Convert to fraction form
    478,168.02/717,079.73 = 158,260.86/x
  3. Step 3: Cross multiply
    478,168.02x = 717,079.73 × 158,260.86
  4. Step 4: Simplify right side
    478,168.02x = 113,485,653,967.06
  5. Step 5: Solve for x
    x = 113,485,653,967.06/478,168.02
  6. Step 6: Final answer
    x = 237,334.26

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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.