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Finding the Fourth Proportional to 228,008.26, 314,651.47 and 124,642.91

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Solution

The fourth proportional to 228,008.26, 314,651.47 and 124,642.91 is: 172,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,008.26 : 314,651.47 = 124,642.91 : x
  2. Step 2: Convert to fraction form
    228,008.26/314,651.47 = 124,642.91/x
  3. Step 3: Cross multiply
    228,008.26x = 314,651.47 × 124,642.91
  4. Step 4: Simplify right side
    228,008.26x = 39,219,072,815.91
  5. Step 5: Solve for x
    x = 39,219,072,815.91/228,008.26
  6. Step 6: Final answer
    x = 172,007.25

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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.