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Finding the Fourth Proportional to 93,520.32, 140,281.60 and 31,190.80

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Solution

The fourth proportional to 93,520.32, 140,281.60 and 31,190.80 is: 46,786.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,520.32 : 140,281.60 = 31,190.80 : x
  2. Step 2: Convert to fraction form
    93,520.32/140,281.60 = 31,190.80/x
  3. Step 3: Cross multiply
    93,520.32x = 140,281.60 × 31,190.80
  4. Step 4: Simplify right side
    93,520.32x = 4,375,495,329.28
  5. Step 5: Solve for x
    x = 4,375,495,329.28/93,520.32
  6. Step 6: Final answer
    x = 46,786.57

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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.