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Finding the Fourth Proportional to 209,331.01, 313,996.47 and 61,587.01

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Solution

The fourth proportional to 209,331.01, 313,996.47 and 61,587.01 is: 92,380.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,331.01 : 313,996.47 = 61,587.01 : x
  2. Step 2: Convert to fraction form
    209,331.01/313,996.47 = 61,587.01/x
  3. Step 3: Cross multiply
    209,331.01x = 313,996.47 × 61,587.01
  4. Step 4: Simplify right side
    209,331.01x = 19,338,103,737.85
  5. Step 5: Solve for x
    x = 19,338,103,737.85/209,331.01
  6. Step 6: Final answer
    x = 92,380.50

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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.