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Finding the Fourth Proportional to 133,518.87, 200,280.32 and 43,561.17

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Solution

The fourth proportional to 133,518.87, 200,280.32 and 43,561.17 is: 65,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,518.87 : 200,280.32 = 43,561.17 : x
  2. Step 2: Convert to fraction form
    133,518.87/200,280.32 = 43,561.17/x
  3. Step 3: Cross multiply
    133,518.87x = 200,280.32 × 43,561.17
  4. Step 4: Simplify right side
    133,518.87x = 8,724,444,849.37
  5. Step 5: Solve for x
    x = 8,724,444,849.37/133,518.87
  6. Step 6: Final answer
    x = 65,342.41

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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.