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Finding the Fourth Proportional to 437,605.15, 656,349.40 and 122,035.63

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Solution

The fourth proportional to 437,605.15, 656,349.40 and 122,035.63 is: 183,037.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,605.15 : 656,349.40 = 122,035.63 : x
  2. Step 2: Convert to fraction form
    437,605.15/656,349.40 = 122,035.63/x
  3. Step 3: Cross multiply
    437,605.15x = 656,349.40 × 122,035.63
  4. Step 4: Simplify right side
    437,605.15x = 80,098,012,529.12
  5. Step 5: Solve for x
    x = 80,098,012,529.12/437,605.15
  6. Step 6: Final answer
    x = 183,037.18

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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.