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Finding the Fourth Proportional to 384,136.60, 576,128.10 and 184,456.60

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Solution

The fourth proportional to 384,136.60, 576,128.10 and 184,456.60 is: 276,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,136.60 : 576,128.10 = 184,456.60 : x
  2. Step 2: Convert to fraction form
    384,136.60/576,128.10 = 184,456.60/x
  3. Step 3: Cross multiply
    384,136.60x = 576,128.10 × 184,456.60
  4. Step 4: Simplify right side
    384,136.60x = 106,270,630,490.46
  5. Step 5: Solve for x
    x = 106,270,630,490.46/384,136.60
  6. Step 6: Final answer
    x = 276,648.02

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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.