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Finding the Fourth Proportional to 93,146.60, 128,542.92 and 50,705.66

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Solution

The fourth proportional to 93,146.60, 128,542.92 and 50,705.66 is: 69,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,146.60 : 128,542.92 = 50,705.66 : x
  2. Step 2: Convert to fraction form
    93,146.60/128,542.92 = 50,705.66/x
  3. Step 3: Cross multiply
    93,146.60x = 128,542.92 × 50,705.66
  4. Step 4: Simplify right side
    93,146.60x = 6,517,853,596.93
  5. Step 5: Solve for x
    x = 6,517,853,596.93/93,146.60
  6. Step 6: Final answer
    x = 69,974.14

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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.