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Finding the Fourth Proportional to 93,670.67, 129,143.49 and 68,181.19

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Solution

The fourth proportional to 93,670.67, 129,143.49 and 68,181.19 is: 94,001.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,670.67 : 129,143.49 = 68,181.19 : x
  2. Step 2: Convert to fraction form
    93,670.67/129,143.49 = 68,181.19/x
  3. Step 3: Cross multiply
    93,670.67x = 129,143.49 × 68,181.19
  4. Step 4: Simplify right side
    93,670.67x = 8,805,156,828.95
  5. Step 5: Solve for x
    x = 8,805,156,828.95/93,670.67
  6. Step 6: Final answer
    x = 94,001.22

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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.