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Finding the Fourth Proportional to 68,054.91, 93,987.50 and 60,633.69

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Solution

The fourth proportional to 68,054.91, 93,987.50 and 60,633.69 is: 83,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,054.91 : 93,987.50 = 60,633.69 : x
  2. Step 2: Convert to fraction form
    68,054.91/93,987.50 = 60,633.69/x
  3. Step 3: Cross multiply
    68,054.91x = 93,987.50 × 60,633.69
  4. Step 4: Simplify right side
    68,054.91x = 5,698,808,938.88
  5. Step 5: Solve for x
    x = 5,698,808,938.88/68,054.91
  6. Step 6: Final answer
    x = 83,738.40

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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.