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Finding the Fourth Proportional to 105,616.73, 158,434.84 and 34,539.74

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Solution

The fourth proportional to 105,616.73, 158,434.84 and 34,539.74 is: 51,812.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,616.73 : 158,434.84 = 34,539.74 : x
  2. Step 2: Convert to fraction form
    105,616.73/158,434.84 = 34,539.74/x
  3. Step 3: Cross multiply
    105,616.73x = 158,434.84 × 34,539.74
  4. Step 4: Simplify right side
    105,616.73x = 5,472,297,215.67
  5. Step 5: Solve for x
    x = 5,472,297,215.67/105,616.73
  6. Step 6: Final answer
    x = 51,812.79

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1.5x scale

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.