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Finding the Fourth Proportional to 101,626.70, 152,438.66 and 31,506.01

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Solution

The fourth proportional to 101,626.70, 152,438.66 and 31,506.01 is: 47,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,626.70 : 152,438.66 = 31,506.01 : x
  2. Step 2: Convert to fraction form
    101,626.70/152,438.66 = 31,506.01/x
  3. Step 3: Cross multiply
    101,626.70x = 152,438.66 × 31,506.01
  4. Step 4: Simplify right side
    101,626.70x = 4,802,733,525.87
  5. Step 5: Solve for x
    x = 4,802,733,525.87/101,626.70
  6. Step 6: Final answer
    x = 47,258.58

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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.