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Finding the Fourth Proportional to 93,380.97, 128,847.42 and 53,087.79

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Solution

The fourth proportional to 93,380.97, 128,847.42 and 53,087.79 is: 73,250.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,380.97 : 128,847.42 = 53,087.79 : x
  2. Step 2: Convert to fraction form
    93,380.97/128,847.42 = 53,087.79/x
  3. Step 3: Cross multiply
    93,380.97x = 128,847.42 × 53,087.79
  4. Step 4: Simplify right side
    93,380.97x = 6,840,224,775.00
  5. Step 5: Solve for x
    x = 6,840,224,775.00/93,380.97
  6. Step 6: Final answer
    x = 73,250.74

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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.