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Finding the Fourth Proportional to 70,739.16, 106,130.88 and 26,369.52

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Solution

The fourth proportional to 70,739.16, 106,130.88 and 26,369.52 is: 39,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,739.16 : 106,130.88 = 26,369.52 : x
  2. Step 2: Convert to fraction form
    70,739.16/106,130.88 = 26,369.52/x
  3. Step 3: Cross multiply
    70,739.16x = 106,130.88 × 26,369.52
  4. Step 4: Simplify right side
    70,739.16x = 2,798,620,362.78
  5. Step 5: Solve for x
    x = 2,798,620,362.78/70,739.16
  6. Step 6: Final answer
    x = 39,562.53

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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.