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Finding the Fourth Proportional to 68,966.70, 103,030.79 and 43,805.26

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Solution

The fourth proportional to 68,966.70, 103,030.79 and 43,805.26 is: 65,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,966.70 : 103,030.79 = 43,805.26 : x
  2. Step 2: Convert to fraction form
    68,966.70/103,030.79 = 43,805.26/x
  3. Step 3: Cross multiply
    68,966.70x = 103,030.79 × 43,805.26
  4. Step 4: Simplify right side
    68,966.70x = 4,513,290,543.96
  5. Step 5: Solve for x
    x = 4,513,290,543.96/68,966.70
  6. Step 6: Final answer
    x = 65,441.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.