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Finding the Fourth Proportional to 437,626.60, 656,430.30 and 122,074.60

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Solution

The fourth proportional to 437,626.60, 656,430.30 and 122,074.60 is: 183,109.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,626.60 : 656,430.30 = 122,074.60 : x
  2. Step 2: Convert to fraction form
    437,626.60/656,430.30 = 122,074.60/x
  3. Step 3: Cross multiply
    437,626.60x = 656,430.30 × 122,074.60
  4. Step 4: Simplify right side
    437,626.60x = 80,133,466,300.38
  5. Step 5: Solve for x
    x = 80,133,466,300.38/437,626.60
  6. Step 6: Final answer
    x = 183,109.22

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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.