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Finding the Fourth Proportional to 133,569.72, 200,360.66 and 74,360.75

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Solution

The fourth proportional to 133,569.72, 200,360.66 and 74,360.75 is: 111,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,569.72 : 200,360.66 = 74,360.75 : x
  2. Step 2: Convert to fraction form
    133,569.72/200,360.66 = 74,360.75/x
  3. Step 3: Cross multiply
    133,569.72x = 200,360.66 × 74,360.75
  4. Step 4: Simplify right side
    133,569.72x = 14,898,967,574.49
  5. Step 5: Solve for x
    x = 14,898,967,574.49/133,569.72
  6. Step 6: Final answer
    x = 111,544.50

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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.