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Finding the Fourth Proportional to 617,151.72, 925,748.02 and 212,340.02

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Solution

The fourth proportional to 617,151.72, 925,748.02 and 212,340.02 is: 318,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,151.72 : 925,748.02 = 212,340.02 : x
  2. Step 2: Convert to fraction form
    617,151.72/925,748.02 = 212,340.02/x
  3. Step 3: Cross multiply
    617,151.72x = 925,748.02 × 212,340.02
  4. Step 4: Simplify right side
    617,151.72x = 196,573,353,081.76
  5. Step 5: Solve for x
    x = 196,573,353,081.76/617,151.72
  6. Step 6: Final answer
    x = 318,517.06

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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.