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Finding the Fourth Proportional to 228,067.42, 314,723.15 and 124,699.72

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Solution

The fourth proportional to 228,067.42, 314,723.15 and 124,699.72 is: 172,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,067.42 : 314,723.15 = 124,699.72 : x
  2. Step 2: Convert to fraction form
    228,067.42/314,723.15 = 124,699.72/x
  3. Step 3: Cross multiply
    228,067.42x = 314,723.15 × 124,699.72
  4. Step 4: Simplify right side
    228,067.42x = 39,245,887,108.90
  5. Step 5: Solve for x
    x = 39,245,887,108.90/228,067.42
  6. Step 6: Final answer
    x = 172,080.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.