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Finding the Fourth Proportional to 93,276.80, 139,915.20 and 67,227.20

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Solution

The fourth proportional to 93,276.80, 139,915.20 and 67,227.20 is: 100,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,276.80 : 139,915.20 = 67,227.20 : x
  2. Step 2: Convert to fraction form
    93,276.80/139,915.20 = 67,227.20/x
  3. Step 3: Cross multiply
    93,276.80x = 139,915.20 × 67,227.20
  4. Step 4: Simplify right side
    93,276.80x = 9,406,107,133.44
  5. Step 5: Solve for x
    x = 9,406,107,133.44/93,276.80
  6. Step 6: Final answer
    x = 100,840.80

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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.