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Finding the Fourth Proportional to 136,064.40, 203,693.40 and 101,158.80

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Solution

The fourth proportional to 136,064.40, 203,693.40 and 101,158.80 is: 151,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,064.40 : 203,693.40 = 101,158.80 : x
  2. Step 2: Convert to fraction form
    136,064.40/203,693.40 = 101,158.80/x
  3. Step 3: Cross multiply
    136,064.40x = 203,693.40 × 101,158.80
  4. Step 4: Simplify right side
    136,064.40x = 20,605,379,911.92
  5. Step 5: Solve for x
    x = 20,605,379,911.92/136,064.40
  6. Step 6: Final answer
    x = 151,438.44

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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.