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Finding the Fourth Proportional to 74,048.40, 111,040.20 and 29,660.40

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Solution

The fourth proportional to 74,048.40, 111,040.20 and 29,660.40 is: 44,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,048.40 : 111,040.20 = 29,660.40 : x
  2. Step 2: Convert to fraction form
    74,048.40/111,040.20 = 29,660.40/x
  3. Step 3: Cross multiply
    74,048.40x = 111,040.20 × 29,660.40
  4. Step 4: Simplify right side
    74,048.40x = 3,293,496,748.08
  5. Step 5: Solve for x
    x = 3,293,496,748.08/74,048.40
  6. Step 6: Final answer
    x = 44,477.62

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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.