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Finding the Fourth Proportional to 125,076.34, 172,607.26 and 68,492.98

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Solution

The fourth proportional to 125,076.34, 172,607.26 and 68,492.98 is: 94,521.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,076.34 : 172,607.26 = 68,492.98 : x
  2. Step 2: Convert to fraction form
    125,076.34/172,607.26 = 68,492.98/x
  3. Step 3: Cross multiply
    125,076.34x = 172,607.26 × 68,492.98
  4. Step 4: Simplify right side
    125,076.34x = 11,822,385,607.03
  5. Step 5: Solve for x
    x = 11,822,385,607.03/125,076.34
  6. Step 6: Final answer
    x = 94,521.36

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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.