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Finding the Fourth Proportional to 524,640.30, 786,743.20 and 164,690.88

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Solution

The fourth proportional to 524,640.30, 786,743.20 and 164,690.88 is: 246,968.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,640.30 : 786,743.20 = 164,690.88 : x
  2. Step 2: Convert to fraction form
    524,640.30/786,743.20 = 164,690.88/x
  3. Step 3: Cross multiply
    524,640.30x = 786,743.20 × 164,690.88
  4. Step 4: Simplify right side
    524,640.30x = 129,569,429,942.02
  5. Step 5: Solve for x
    x = 129,569,429,942.02/524,640.30
  6. Step 6: Final answer
    x = 246,968.12

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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.