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Finding the Fourth Proportional to 136,602.57, 204,854.65 and 57,722.95

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Solution

The fourth proportional to 136,602.57, 204,854.65 and 57,722.95 is: 86,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,602.57 : 204,854.65 = 57,722.95 : x
  2. Step 2: Convert to fraction form
    136,602.57/204,854.65 = 57,722.95/x
  3. Step 3: Cross multiply
    136,602.57x = 204,854.65 × 57,722.95
  4. Step 4: Simplify right side
    136,602.57x = 11,824,814,062.77
  5. Step 5: Solve for x
    x = 11,824,814,062.77/136,602.57
  6. Step 6: Final answer
    x = 86,563.63

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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.