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Finding the Fourth Proportional to 104,830.80, 157,246.20 and 54,891.60

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Solution

The fourth proportional to 104,830.80, 157,246.20 and 54,891.60 is: 82,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,830.80 : 157,246.20 = 54,891.60 : x
  2. Step 2: Convert to fraction form
    104,830.80/157,246.20 = 54,891.60/x
  3. Step 3: Cross multiply
    104,830.80x = 157,246.20 × 54,891.60
  4. Step 4: Simplify right side
    104,830.80x = 8,631,495,511.92
  5. Step 5: Solve for x
    x = 8,631,495,511.92/104,830.80
  6. Step 6: Final answer
    x = 82,337.40

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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.