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Finding the Fourth Proportional to 105,626.70, 158,455.98 and 45,671.58

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Solution

The fourth proportional to 105,626.70, 158,455.98 and 45,671.58 is: 68,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,626.70 : 158,455.98 = 45,671.58 : x
  2. Step 2: Convert to fraction form
    105,626.70/158,455.98 = 45,671.58/x
  3. Step 3: Cross multiply
    105,626.70x = 158,455.98 × 45,671.58
  4. Step 4: Simplify right side
    105,626.70x = 7,236,934,967.05
  5. Step 5: Solve for x
    x = 7,236,934,967.05/105,626.70
  6. Step 6: Final answer
    x = 68,514.26

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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.