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Finding the Fourth Proportional to 168,403.70, 252,022.35 and 154,406.90

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Solution

The fourth proportional to 168,403.70, 252,022.35 and 154,406.90 is: 231,075.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,403.70 : 252,022.35 = 154,406.90 : x
  2. Step 2: Convert to fraction form
    168,403.70/252,022.35 = 154,406.90/x
  3. Step 3: Cross multiply
    168,403.70x = 252,022.35 × 154,406.90
  4. Step 4: Simplify right side
    168,403.70x = 38,913,989,794.22
  5. Step 5: Solve for x
    x = 38,913,989,794.22/168,403.70
  6. Step 6: Final answer
    x = 231,075.62

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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.