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Finding the Fourth Proportional to 60,368.70, 90,480.15 and 30,771.30

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Solution

The fourth proportional to 60,368.70, 90,480.15 and 30,771.30 is: 46,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,368.70 : 90,480.15 = 30,771.30 : x
  2. Step 2: Convert to fraction form
    60,368.70/90,480.15 = 30,771.30/x
  3. Step 3: Cross multiply
    60,368.70x = 90,480.15 × 30,771.30
  4. Step 4: Simplify right side
    60,368.70x = 2,784,191,839.70
  5. Step 5: Solve for x
    x = 2,784,191,839.70/60,368.70
  6. Step 6: Final answer
    x = 46,119.79

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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.