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Finding the Fourth Proportional to 206,984.90, 310,217.64 and 88,516.93

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Solution

The fourth proportional to 206,984.90, 310,217.64 and 88,516.93 is: 132,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,984.90 : 310,217.64 = 88,516.93 : x
  2. Step 2: Convert to fraction form
    206,984.90/310,217.64 = 88,516.93/x
  3. Step 3: Cross multiply
    206,984.90x = 310,217.64 × 88,516.93
  4. Step 4: Simplify right side
    206,984.90x = 27,459,513,124.65
  5. Step 5: Solve for x
    x = 27,459,513,124.65/206,984.90
  6. Step 6: Final answer
    x = 132,664.33

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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.