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Finding the Fourth Proportional to 93,361.55, 128,816.78 and 53,072.12

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Solution

The fourth proportional to 93,361.55, 128,816.78 and 53,072.12 is: 73,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,361.55 : 128,816.78 = 53,072.12 : x
  2. Step 2: Convert to fraction form
    93,361.55/128,816.78 = 53,072.12/x
  3. Step 3: Cross multiply
    93,361.55x = 128,816.78 × 53,072.12
  4. Step 4: Simplify right side
    93,361.55x = 6,836,579,662.85
  5. Step 5: Solve for x
    x = 6,836,579,662.85/93,361.55
  6. Step 6: Final answer
    x = 73,226.93

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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.