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Finding the Fourth Proportional to 272,096.19, 408,142.98 and 69,691.89

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Solution

The fourth proportional to 272,096.19, 408,142.98 and 69,691.89 is: 104,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,096.19 : 408,142.98 = 69,691.89 : x
  2. Step 2: Convert to fraction form
    272,096.19/408,142.98 = 69,691.89/x
  3. Step 3: Cross multiply
    272,096.19x = 408,142.98 × 69,691.89
  4. Step 4: Simplify right side
    272,096.19x = 28,444,255,666.43
  5. Step 5: Solve for x
    x = 28,444,255,666.43/272,096.19
  6. Step 6: Final answer
    x = 104,537.50

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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.