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Finding the Fourth Proportional to 70,199.51, 105,317.73 and 25,225.40

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Solution

The fourth proportional to 70,199.51, 105,317.73 and 25,225.40 is: 37,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,199.51 : 105,317.73 = 25,225.40 : x
  2. Step 2: Convert to fraction form
    70,199.51/105,317.73 = 25,225.40/x
  3. Step 3: Cross multiply
    70,199.51x = 105,317.73 × 25,225.40
  4. Step 4: Simplify right side
    70,199.51x = 2,656,682,129.64
  5. Step 5: Solve for x
    x = 2,656,682,129.64/70,199.51
  6. Step 6: Final answer
    x = 37,844.74

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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.