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Finding the Fourth Proportional to 171,064.05, 256,521.82 and 65,809.14

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Solution

The fourth proportional to 171,064.05, 256,521.82 and 65,809.14 is: 98,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,064.05 : 256,521.82 = 65,809.14 : x
  2. Step 2: Convert to fraction form
    171,064.05/256,521.82 = 65,809.14/x
  3. Step 3: Cross multiply
    171,064.05x = 256,521.82 × 65,809.14
  4. Step 4: Simplify right side
    171,064.05x = 16,881,480,365.43
  5. Step 5: Solve for x
    x = 16,881,480,365.43/171,064.05
  6. Step 6: Final answer
    x = 98,685.14

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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.