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Finding the Fourth Proportional to 68,070.49, 93,923.79 and 41,215.50

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Solution

The fourth proportional to 68,070.49, 93,923.79 and 41,215.50 is: 56,869.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,070.49 : 93,923.79 = 41,215.50 : x
  2. Step 2: Convert to fraction form
    68,070.49/93,923.79 = 41,215.50/x
  3. Step 3: Cross multiply
    68,070.49x = 93,923.79 × 41,215.50
  4. Step 4: Simplify right side
    68,070.49x = 3,871,115,812.19
  5. Step 5: Solve for x
    x = 3,871,115,812.19/68,070.49
  6. Step 6: Final answer
    x = 56,869.22

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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.