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Finding the Fourth Proportional to 93,201.68, 128,619.78 and 50,760.18

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Solution

The fourth proportional to 93,201.68, 128,619.78 and 50,760.18 is: 70,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,201.68 : 128,619.78 = 50,760.18 : x
  2. Step 2: Convert to fraction form
    93,201.68/128,619.78 = 50,760.18/x
  3. Step 3: Cross multiply
    93,201.68x = 128,619.78 × 50,760.18
  4. Step 4: Simplify right side
    93,201.68x = 6,528,762,541.26
  5. Step 5: Solve for x
    x = 6,528,762,541.26/93,201.68
  6. Step 6: Final answer
    x = 70,049.84

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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.