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Finding the Fourth Proportional to 118,807.20, 178,124.40 and 48,650.40

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Solution

The fourth proportional to 118,807.20, 178,124.40 and 48,650.40 is: 72,940.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,807.20 : 178,124.40 = 48,650.40 : x
  2. Step 2: Convert to fraction form
    118,807.20/178,124.40 = 48,650.40/x
  3. Step 3: Cross multiply
    118,807.20x = 178,124.40 × 48,650.40
  4. Step 4: Simplify right side
    118,807.20x = 8,665,823,309.76
  5. Step 5: Solve for x
    x = 8,665,823,309.76/118,807.20
  6. Step 6: Final answer
    x = 72,940.22

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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.