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Finding the Fourth Proportional to 523,690.76, 785,536.76 and 168,757.64

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Solution

The fourth proportional to 523,690.76, 785,536.76 and 168,757.64 is: 253,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,690.76 : 785,536.76 = 168,757.64 : x
  2. Step 2: Convert to fraction form
    523,690.76/785,536.76 = 168,757.64/x
  3. Step 3: Cross multiply
    523,690.76x = 785,536.76 × 168,757.64
  4. Step 4: Simplify right side
    523,690.76x = 132,565,329,750.85
  5. Step 5: Solve for x
    x = 132,565,329,750.85/523,690.76
  6. Step 6: Final answer
    x = 253,136.66

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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.