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Finding the Fourth Proportional to 93,271.68, 128,026.26 and 82,974.60

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Solution

The fourth proportional to 93,271.68, 128,026.26 and 82,974.60 is: 113,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,271.68 : 128,026.26 = 82,974.60 : x
  2. Step 2: Convert to fraction form
    93,271.68/128,026.26 = 82,974.60/x
  3. Step 3: Cross multiply
    93,271.68x = 128,026.26 × 82,974.60
  4. Step 4: Simplify right side
    93,271.68x = 10,622,927,713.00
  5. Step 5: Solve for x
    x = 10,622,927,713.00/93,271.68
  6. Step 6: Final answer
    x = 113,892.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.