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Finding the Fourth Proportional to 209,911.73, 314,772.82 and 60,117.73

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Solution

The fourth proportional to 209,911.73, 314,772.82 and 60,117.73 is: 90,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,911.73 : 314,772.82 = 60,117.73 : x
  2. Step 2: Convert to fraction form
    209,911.73/314,772.82 = 60,117.73/x
  3. Step 3: Cross multiply
    209,911.73x = 314,772.82 × 60,117.73
  4. Step 4: Simplify right side
    209,911.73x = 18,923,426,466.87
  5. Step 5: Solve for x
    x = 18,923,426,466.87/209,911.73
  6. Step 6: Final answer
    x = 90,149.45

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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.