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Finding the Fourth Proportional to 68,055.62, 93,886.14 and 39,744.50

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Solution

The fourth proportional to 68,055.62, 93,886.14 and 39,744.50 is: 54,829.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,055.62 : 93,886.14 = 39,744.50 : x
  2. Step 2: Convert to fraction form
    68,055.62/93,886.14 = 39,744.50/x
  3. Step 3: Cross multiply
    68,055.62x = 93,886.14 × 39,744.50
  4. Step 4: Simplify right side
    68,055.62x = 3,731,457,691.23
  5. Step 5: Solve for x
    x = 3,731,457,691.23/68,055.62
  6. Step 6: Final answer
    x = 54,829.53

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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.