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Finding the Fourth Proportional to 114,630.66, 171,952.65 and 30,388.74

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Solution

The fourth proportional to 114,630.66, 171,952.65 and 30,388.74 is: 45,584.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,630.66 : 171,952.65 = 30,388.74 : x
  2. Step 2: Convert to fraction form
    114,630.66/171,952.65 = 30,388.74/x
  3. Step 3: Cross multiply
    114,630.66x = 171,952.65 × 30,388.74
  4. Step 4: Simplify right side
    114,630.66x = 5,225,424,373.16
  5. Step 5: Solve for x
    x = 5,225,424,373.16/114,630.66
  6. Step 6: Final answer
    x = 45,584.88

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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.