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Finding the Fourth Proportional to 136,797.72, 205,228.16 and 43,303.47

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Solution

The fourth proportional to 136,797.72, 205,228.16 and 43,303.47 is: 64,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,797.72 : 205,228.16 = 43,303.47 : x
  2. Step 2: Convert to fraction form
    136,797.72/205,228.16 = 43,303.47/x
  3. Step 3: Cross multiply
    136,797.72x = 205,228.16 × 43,303.47
  4. Step 4: Simplify right side
    136,797.72x = 8,887,091,469.72
  5. Step 5: Solve for x
    x = 8,887,091,469.72/136,797.72
  6. Step 6: Final answer
    x = 64,965.20

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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.