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Finding the Fourth Proportional to 136,271.70, 204,334.65 and 57,296.70

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Solution

The fourth proportional to 136,271.70, 204,334.65 and 57,296.70 is: 85,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,271.70 : 204,334.65 = 57,296.70 : x
  2. Step 2: Convert to fraction form
    136,271.70/204,334.65 = 57,296.70/x
  3. Step 3: Cross multiply
    136,271.70x = 204,334.65 × 57,296.70
  4. Step 4: Simplify right side
    136,271.70x = 11,707,701,140.66
  5. Step 5: Solve for x
    x = 11,707,701,140.66/136,271.70
  6. Step 6: Final answer
    x = 85,914.40

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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.