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Finding the Fourth Proportional to 187,801.32, 259,190.64 and 107,210.64

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Solution

The fourth proportional to 187,801.32, 259,190.64 and 107,210.64 is: 147,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,801.32 : 259,190.64 = 107,210.64 : x
  2. Step 2: Convert to fraction form
    187,801.32/259,190.64 = 107,210.64/x
  3. Step 3: Cross multiply
    187,801.32x = 259,190.64 × 107,210.64
  4. Step 4: Simplify right side
    187,801.32x = 27,787,994,396.41
  5. Step 5: Solve for x
    x = 27,787,994,396.41/187,801.32
  6. Step 6: Final answer
    x = 147,964.85

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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.