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Finding the Fourth Proportional to 137,252.61, 205,938.09 and 53,072.04

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Solution

The fourth proportional to 137,252.61, 205,938.09 and 53,072.04 is: 79,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,252.61 : 205,938.09 = 53,072.04 : x
  2. Step 2: Convert to fraction form
    137,252.61/205,938.09 = 53,072.04/x
  3. Step 3: Cross multiply
    137,252.61x = 205,938.09 × 53,072.04
  4. Step 4: Simplify right side
    137,252.61x = 10,929,554,550.00
  5. Step 5: Solve for x
    x = 10,929,554,550.00/137,252.61
  6. Step 6: Final answer
    x = 79,630.94

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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.