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Finding the Fourth Proportional to 228,477.84, 315,276.68 and 132,997.20

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Solution

The fourth proportional to 228,477.84, 315,276.68 and 132,997.20 is: 183,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,477.84 : 315,276.68 = 132,997.20 : x
  2. Step 2: Convert to fraction form
    228,477.84/315,276.68 = 132,997.20/x
  3. Step 3: Cross multiply
    228,477.84x = 315,276.68 × 132,997.20
  4. Step 4: Simplify right side
    228,477.84x = 41,930,915,665.30
  5. Step 5: Solve for x
    x = 41,930,915,665.30/228,477.84
  6. Step 6: Final answer
    x = 183,522.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.