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Finding the Fourth Proportional to 104,432, 144,116.32 and 59,720.96

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Solution

The fourth proportional to 104,432, 144,116.32 and 59,720.96 is: 82,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,432 : 144,116.32 = 59,720.96 : x
  2. Step 2: Convert to fraction form
    104,432/144,116.32 = 59,720.96/x
  3. Step 3: Cross multiply
    104,432x = 144,116.32 × 59,720.96
  4. Step 4: Simplify right side
    104,432x = 8,606,764,982.07
  5. Step 5: Solve for x
    x = 8,606,764,982.07/104,432
  6. Step 6: Final answer
    x = 82,415.02

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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.