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Finding the Fourth Proportional to 185,555.94, 278,333.16 and 67,199.64

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Solution

The fourth proportional to 185,555.94, 278,333.16 and 67,199.64 is: 100,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,555.94 : 278,333.16 = 67,199.64 : x
  2. Step 2: Convert to fraction form
    185,555.94/278,333.16 = 67,199.64/x
  3. Step 3: Cross multiply
    185,555.94x = 278,333.16 × 67,199.64
  4. Step 4: Simplify right side
    185,555.94x = 18,703,888,152.06
  5. Step 5: Solve for x
    x = 18,703,888,152.06/185,555.94
  6. Step 6: Final answer
    x = 100,799.19

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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.