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Finding the Fourth Proportional to 125,477.43, 173,159.15 and 68,892.45

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Solution

The fourth proportional to 125,477.43, 173,159.15 and 68,892.45 is: 95,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,477.43 : 173,159.15 = 68,892.45 : x
  2. Step 2: Convert to fraction form
    125,477.43/173,159.15 = 68,892.45/x
  3. Step 3: Cross multiply
    125,477.43x = 173,159.15 × 68,892.45
  4. Step 4: Simplify right side
    125,477.43x = 11,929,358,083.42
  5. Step 5: Solve for x
    x = 11,929,358,083.42/125,477.43
  6. Step 6: Final answer
    x = 95,071.74

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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.