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Finding the Fourth Proportional to 100,931.00, 151,396.53 and 69,245.02

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Solution

The fourth proportional to 100,931.00, 151,396.53 and 69,245.02 is: 103,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,931.00 : 151,396.53 = 69,245.02 : x
  2. Step 2: Convert to fraction form
    100,931.00/151,396.53 = 69,245.02/x
  3. Step 3: Cross multiply
    100,931.00x = 151,396.53 × 69,245.02
  4. Step 4: Simplify right side
    100,931.00x = 10,483,455,369.29
  5. Step 5: Solve for x
    x = 10,483,455,369.29/100,931.00
  6. Step 6: Final answer
    x = 103,867.54

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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.