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Finding the Fourth Proportional to 75,158.70, 103,718.79 and 41,624.70

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Solution

The fourth proportional to 75,158.70, 103,718.79 and 41,624.70 is: 57,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,158.70 : 103,718.79 = 41,624.70 : x
  2. Step 2: Convert to fraction form
    75,158.70/103,718.79 = 41,624.70/x
  3. Step 3: Cross multiply
    75,158.70x = 103,718.79 × 41,624.70
  4. Step 4: Simplify right side
    75,158.70x = 4,317,263,518.11
  5. Step 5: Solve for x
    x = 4,317,263,518.11/75,158.70
  6. Step 6: Final answer
    x = 57,441.97

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1.5x scale

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.