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Finding the Fourth Proportional to 104,671.80, 157,044.15 and 45,549.90

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Solution

The fourth proportional to 104,671.80, 157,044.15 and 45,549.90 is: 68,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,671.80 : 157,044.15 = 45,549.90 : x
  2. Step 2: Convert to fraction form
    104,671.80/157,044.15 = 45,549.90/x
  3. Step 3: Cross multiply
    104,671.80x = 157,044.15 × 45,549.90
  4. Step 4: Simplify right side
    104,671.80x = 7,153,345,328.09
  5. Step 5: Solve for x
    x = 7,153,345,328.09/104,671.80
  6. Step 6: Final answer
    x = 68,340.71

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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.