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Finding the Fourth Proportional to 123,143.20, 184,671.60 and 63,959.20

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Solution

The fourth proportional to 123,143.20, 184,671.60 and 63,959.20 is: 95,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,143.20 : 184,671.60 = 63,959.20 : x
  2. Step 2: Convert to fraction form
    123,143.20/184,671.60 = 63,959.20/x
  3. Step 3: Cross multiply
    123,143.20x = 184,671.60 × 63,959.20
  4. Step 4: Simplify right side
    123,143.20x = 11,811,447,798.72
  5. Step 5: Solve for x
    x = 11,811,447,798.72/123,143.20
  6. Step 6: Final answer
    x = 95,916.36

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1.5x scale

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.