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Finding the Fourth Proportional to 205,681.57, 308,560.98 and 93,369.67

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Solution

The fourth proportional to 205,681.57, 308,560.98 and 93,369.67 is: 140,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,681.57 : 308,560.98 = 93,369.67 : x
  2. Step 2: Convert to fraction form
    205,681.57/308,560.98 = 93,369.67/x
  3. Step 3: Cross multiply
    205,681.57x = 308,560.98 × 93,369.67
  4. Step 4: Simplify right side
    205,681.57x = 28,810,236,877.48
  5. Step 5: Solve for x
    x = 28,810,236,877.48/205,681.57
  6. Step 6: Final answer
    x = 140,072.04

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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.