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Finding the Fourth Proportional to 93,367.78, 128,846.90 and 53,081.55

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Solution

The fourth proportional to 93,367.78, 128,846.90 and 53,081.55 is: 73,252.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,367.78 : 128,846.90 = 53,081.55 : x
  2. Step 2: Convert to fraction form
    93,367.78/128,846.90 = 53,081.55/x
  3. Step 3: Cross multiply
    93,367.78x = 128,846.90 × 53,081.55
  4. Step 4: Simplify right side
    93,367.78x = 6,839,393,297.40
  5. Step 5: Solve for x
    x = 6,839,393,297.40/93,367.78
  6. Step 6: Final answer
    x = 73,252.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.