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Finding the Fourth Proportional to 68,117.76, 93,995.64 and 37,898.28

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Solution

The fourth proportional to 68,117.76, 93,995.64 and 37,898.28 is: 52,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,117.76 : 93,995.64 = 37,898.28 : x
  2. Step 2: Convert to fraction form
    68,117.76/93,995.64 = 37,898.28/x
  3. Step 3: Cross multiply
    68,117.76x = 93,995.64 × 37,898.28
  4. Step 4: Simplify right side
    68,117.76x = 3,562,273,083.50
  5. Step 5: Solve for x
    x = 3,562,273,083.50/68,117.76
  6. Step 6: Final answer
    x = 52,295.80

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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.