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Finding the Fourth Proportional to 209,329.50, 313,994.22 and 61,585.50

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Solution

The fourth proportional to 209,329.50, 313,994.22 and 61,585.50 is: 92,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,329.50 : 313,994.22 = 61,585.50 : x
  2. Step 2: Convert to fraction form
    209,329.50/313,994.22 = 61,585.50/x
  3. Step 3: Cross multiply
    209,329.50x = 313,994.22 × 61,585.50
  4. Step 4: Simplify right side
    209,329.50x = 19,337,491,035.81
  5. Step 5: Solve for x
    x = 19,337,491,035.81/209,329.50
  6. Step 6: Final answer
    x = 92,378.24

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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.