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Finding the Fourth Proportional to 94,680.80, 142,020.16 and 65,008.16

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Solution

The fourth proportional to 94,680.80, 142,020.16 and 65,008.16 is: 97,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,680.80 : 142,020.16 = 65,008.16 : x
  2. Step 2: Convert to fraction form
    94,680.80/142,020.16 = 65,008.16/x
  3. Step 3: Cross multiply
    94,680.80x = 142,020.16 × 65,008.16
  4. Step 4: Simplify right side
    94,680.80x = 9,232,469,284.51
  5. Step 5: Solve for x
    x = 9,232,469,284.51/94,680.80
  6. Step 6: Final answer
    x = 97,511.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.