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Finding the Fourth Proportional to 341,836.94, 512,755.65 and 89,116.81

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Solution

The fourth proportional to 341,836.94, 512,755.65 and 89,116.81 is: 133,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,836.94 : 512,755.65 = 89,116.81 : x
  2. Step 2: Convert to fraction form
    341,836.94/512,755.65 = 89,116.81/x
  3. Step 3: Cross multiply
    341,836.94x = 512,755.65 × 89,116.81
  4. Step 4: Simplify right side
    341,836.94x = 45,695,146,555.59
  5. Step 5: Solve for x
    x = 45,695,146,555.59/341,836.94
  6. Step 6: Final answer
    x = 133,675.27

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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.