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Finding the Fourth Proportional to 68,011.78, 93,854.36 and 37,796.32

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Solution

The fourth proportional to 68,011.78, 93,854.36 and 37,796.32 is: 52,157.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,011.78 : 93,854.36 = 37,796.32 : x
  2. Step 2: Convert to fraction form
    68,011.78/93,854.36 = 37,796.32/x
  3. Step 3: Cross multiply
    68,011.78x = 93,854.36 × 37,796.32
  4. Step 4: Simplify right side
    68,011.78x = 3,547,349,423.96
  5. Step 5: Solve for x
    x = 3,547,349,423.96/68,011.78
  6. Step 6: Final answer
    x = 52,157.87

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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.