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Finding the Fourth Proportional to 134,311.20, 201,236.40 and 64,039.20

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Solution

The fourth proportional to 134,311.20, 201,236.40 and 64,039.20 is: 95,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,311.20 : 201,236.40 = 64,039.20 : x
  2. Step 2: Convert to fraction form
    134,311.20/201,236.40 = 64,039.20/x
  3. Step 3: Cross multiply
    134,311.20x = 201,236.40 × 64,039.20
  4. Step 4: Simplify right side
    134,311.20x = 12,887,018,066.88
  5. Step 5: Solve for x
    x = 12,887,018,066.88/134,311.20
  6. Step 6: Final answer
    x = 95,948.95

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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.