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Finding the Fourth Proportional to 265,739.02, 398,773.85 and 107,967.48

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Solution

The fourth proportional to 265,739.02, 398,773.85 and 107,967.48 is: 162,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,739.02 : 398,773.85 = 107,967.48 : x
  2. Step 2: Convert to fraction form
    265,739.02/398,773.85 = 107,967.48/x
  3. Step 3: Cross multiply
    265,739.02x = 398,773.85 × 107,967.48
  4. Step 4: Simplify right side
    265,739.02x = 43,054,607,674.40
  5. Step 5: Solve for x
    x = 43,054,607,674.40/265,739.02
  6. Step 6: Final answer
    x = 162,018.39

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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.