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Finding the Fourth Proportional to 136,539.81, 204,732.63 and 56,532.60

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Solution

The fourth proportional to 136,539.81, 204,732.63 and 56,532.60 is: 84,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,539.81 : 204,732.63 = 56,532.60 : x
  2. Step 2: Convert to fraction form
    136,539.81/204,732.63 = 56,532.60/x
  3. Step 3: Cross multiply
    136,539.81x = 204,732.63 × 56,532.60
  4. Step 4: Simplify right side
    136,539.81x = 11,574,067,878.74
  5. Step 5: Solve for x
    x = 11,574,067,878.74/136,539.81
  6. Step 6: Final answer
    x = 84,766.98

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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.