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Finding the Fourth Proportional to 93,201.55, 128,619.60 and 50,760.05

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Solution

The fourth proportional to 93,201.55, 128,619.60 and 50,760.05 is: 70,049.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,201.55 : 128,619.60 = 50,760.05 : x
  2. Step 2: Convert to fraction form
    93,201.55/128,619.60 = 50,760.05/x
  3. Step 3: Cross multiply
    93,201.55x = 128,619.60 × 50,760.05
  4. Step 4: Simplify right side
    93,201.55x = 6,528,737,326.98
  5. Step 5: Solve for x
    x = 6,528,737,326.98/93,201.55
  6. Step 6: Final answer
    x = 70,049.66

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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.