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Finding the Fourth Proportional to 134,494.70, 201,683.73 and 45,724.40

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Solution

The fourth proportional to 134,494.70, 201,683.73 and 45,724.40 is: 68,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,494.70 : 201,683.73 = 45,724.40 : x
  2. Step 2: Convert to fraction form
    134,494.70/201,683.73 = 45,724.40/x
  3. Step 3: Cross multiply
    134,494.70x = 201,683.73 × 45,724.40
  4. Step 4: Simplify right side
    134,494.70x = 9,221,867,544.01
  5. Step 5: Solve for x
    x = 9,221,867,544.01/134,494.70
  6. Step 6: Final answer
    x = 68,566.77

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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.