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Finding the Fourth Proportional to 86,093.64, 129,119.91 and 36,174.69

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Solution

The fourth proportional to 86,093.64, 129,119.91 and 36,174.69 is: 54,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,093.64 : 129,119.91 = 36,174.69 : x
  2. Step 2: Convert to fraction form
    86,093.64/129,119.91 = 36,174.69/x
  3. Step 3: Cross multiply
    86,093.64x = 129,119.91 × 36,174.69
  4. Step 4: Simplify right side
    86,093.64x = 4,670,872,717.08
  5. Step 5: Solve for x
    x = 4,670,872,717.08/86,093.64
  6. Step 6: Final answer
    x = 54,253.40

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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.