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Finding the Fourth Proportional to 189,424.40, 284,136.60 and 119,440.40

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Solution

The fourth proportional to 189,424.40, 284,136.60 and 119,440.40 is: 179,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,424.40 : 284,136.60 = 119,440.40 : x
  2. Step 2: Convert to fraction form
    189,424.40/284,136.60 = 119,440.40/x
  3. Step 3: Cross multiply
    189,424.40x = 284,136.60 × 119,440.40
  4. Step 4: Simplify right side
    189,424.40x = 33,937,389,158.64
  5. Step 5: Solve for x
    x = 33,937,389,158.64/189,424.40
  6. Step 6: Final answer
    x = 179,160.60

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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.