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Finding the Fourth Proportional to 68,151.62, 94,059.28 and 40,929.54

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Solution

The fourth proportional to 68,151.62, 94,059.28 and 40,929.54 is: 56,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,151.62 : 94,059.28 = 40,929.54 : x
  2. Step 2: Convert to fraction form
    68,151.62/94,059.28 = 40,929.54/x
  3. Step 3: Cross multiply
    68,151.62x = 94,059.28 × 40,929.54
  4. Step 4: Simplify right side
    68,151.62x = 3,849,803,063.13
  5. Step 5: Solve for x
    x = 3,849,803,063.13/68,151.62
  6. Step 6: Final answer
    x = 56,488.80

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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.