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Finding the Fourth Proportional to 168,465.40, 252,698.10 and 43,806.40

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Solution

The fourth proportional to 168,465.40, 252,698.10 and 43,806.40 is: 65,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,465.40 : 252,698.10 = 43,806.40 : x
  2. Step 2: Convert to fraction form
    168,465.40/252,698.10 = 43,806.40/x
  3. Step 3: Cross multiply
    168,465.40x = 252,698.10 × 43,806.40
  4. Step 4: Simplify right side
    168,465.40x = 11,069,794,047.84
  5. Step 5: Solve for x
    x = 11,069,794,047.84/168,465.40
  6. Step 6: Final answer
    x = 65,709.60

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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.