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Finding the Fourth Proportional to 219,183.48, 328,771.56 and 69,423.48

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Solution

The fourth proportional to 219,183.48, 328,771.56 and 69,423.48 is: 104,134.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,183.48 : 328,771.56 = 69,423.48 : x
  2. Step 2: Convert to fraction form
    219,183.48/328,771.56 = 69,423.48/x
  3. Step 3: Cross multiply
    219,183.48x = 328,771.56 × 69,423.48
  4. Step 4: Simplify right side
    219,183.48x = 22,824,465,820.23
  5. Step 5: Solve for x
    x = 22,824,465,820.23/219,183.48
  6. Step 6: Final answer
    x = 104,134.06

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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.