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Finding the Fourth Proportional to 206,113.08, 309,154.84 and 63,954.72

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Solution

The fourth proportional to 206,113.08, 309,154.84 and 63,954.72 is: 95,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,113.08 : 309,154.84 = 63,954.72 : x
  2. Step 2: Convert to fraction form
    206,113.08/309,154.84 = 63,954.72/x
  3. Step 3: Cross multiply
    206,113.08x = 309,154.84 × 63,954.72
  4. Step 4: Simplify right side
    206,113.08x = 19,771,911,228.84
  5. Step 5: Solve for x
    x = 19,771,911,228.84/206,113.08
  6. Step 6: Final answer
    x = 95,927.49

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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.