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Finding the Fourth Proportional to 136,858.94, 205,398.98 and 58,028.52

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Solution

The fourth proportional to 136,858.94, 205,398.98 and 58,028.52 is: 87,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,858.94 : 205,398.98 = 58,028.52 : x
  2. Step 2: Convert to fraction form
    136,858.94/205,398.98 = 58,028.52/x
  3. Step 3: Cross multiply
    136,858.94x = 205,398.98 × 58,028.52
  4. Step 4: Simplify right side
    136,858.94x = 11,918,998,818.91
  5. Step 5: Solve for x
    x = 11,918,998,818.91/136,858.94
  6. Step 6: Final answer
    x = 87,089.66

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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.