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Finding the Fourth Proportional to 109,344.19, 150,894.31 and 61,612.92

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Solution

The fourth proportional to 109,344.19, 150,894.31 and 61,612.92 is: 85,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,344.19 : 150,894.31 = 61,612.92 : x
  2. Step 2: Convert to fraction form
    109,344.19/150,894.31 = 61,612.92/x
  3. Step 3: Cross multiply
    109,344.19x = 150,894.31 × 61,612.92
  4. Step 4: Simplify right side
    109,344.19x = 9,297,039,050.49
  5. Step 5: Solve for x
    x = 9,297,039,050.49/109,344.19
  6. Step 6: Final answer
    x = 85,025.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.