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Finding the Fourth Proportional to 228,012.82, 314,658.32 and 124,648.26

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Solution

The fourth proportional to 228,012.82, 314,658.32 and 124,648.26 is: 172,014.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,012.82 : 314,658.32 = 124,648.26 : x
  2. Step 2: Convert to fraction form
    228,012.82/314,658.32 = 124,648.26/x
  3. Step 3: Cross multiply
    228,012.82x = 314,658.32 × 124,648.26
  4. Step 4: Simplify right side
    228,012.82x = 39,221,612,082.52
  5. Step 5: Solve for x
    x = 39,221,612,082.52/228,012.82
  6. Step 6: Final answer
    x = 172,014.95

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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.