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Finding the Fourth Proportional to 172,614.71, 258,915.94 and 52,666.82

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Solution

The fourth proportional to 172,614.71, 258,915.94 and 52,666.82 is: 78,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,614.71 : 258,915.94 = 52,666.82 : x
  2. Step 2: Convert to fraction form
    172,614.71/258,915.94 = 52,666.82/x
  3. Step 3: Cross multiply
    172,614.71x = 258,915.94 × 52,666.82
  4. Step 4: Simplify right side
    172,614.71x = 13,636,278,751.80
  5. Step 5: Solve for x
    x = 13,636,278,751.80/172,614.71
  6. Step 6: Final answer
    x = 78,998.36

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1.5x scale

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.