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Finding the Fourth Proportional to 114,415.80, 171,639.90 and 35,521.80

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Solution

The fourth proportional to 114,415.80, 171,639.90 and 35,521.80 is: 53,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,415.80 : 171,639.90 = 35,521.80 : x
  2. Step 2: Convert to fraction form
    114,415.80/171,639.90 = 35,521.80/x
  3. Step 3: Cross multiply
    114,415.80x = 171,639.90 × 35,521.80
  4. Step 4: Simplify right side
    114,415.80x = 6,096,958,199.82
  5. Step 5: Solve for x
    x = 6,096,958,199.82/114,415.80
  6. Step 6: Final answer
    x = 53,287.73

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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.