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Finding the Fourth Proportional to 125,230.54, 172,811.73 and 68,630.98

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Solution

The fourth proportional to 125,230.54, 172,811.73 and 68,630.98 is: 94,707.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,230.54 : 172,811.73 = 68,630.98 : x
  2. Step 2: Convert to fraction form
    125,230.54/172,811.73 = 68,630.98/x
  3. Step 3: Cross multiply
    125,230.54x = 172,811.73 × 68,630.98
  4. Step 4: Simplify right side
    125,230.54x = 11,860,238,385.40
  5. Step 5: Solve for x
    x = 11,860,238,385.40/125,230.54
  6. Step 6: Final answer
    x = 94,707.24

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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.