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Finding the Fourth Proportional to 136,752.54, 205,102.80 and 57,922.08

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Solution

The fourth proportional to 136,752.54, 205,102.80 and 57,922.08 is: 86,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,752.54 : 205,102.80 = 57,922.08 : x
  2. Step 2: Convert to fraction form
    136,752.54/205,102.80 = 57,922.08/x
  3. Step 3: Cross multiply
    136,752.54x = 205,102.80 × 57,922.08
  4. Step 4: Simplify right side
    136,752.54x = 11,879,980,789.82
  5. Step 5: Solve for x
    x = 11,879,980,789.82/136,752.54
  6. Step 6: Final answer
    x = 86,872.10

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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.