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Finding the Fourth Proportional to 140,602.08, 194,026.16 and 76,935.60

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Solution

The fourth proportional to 140,602.08, 194,026.16 and 76,935.60 is: 106,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,602.08 : 194,026.16 = 76,935.60 : x
  2. Step 2: Convert to fraction form
    140,602.08/194,026.16 = 76,935.60/x
  3. Step 3: Cross multiply
    140,602.08x = 194,026.16 × 76,935.60
  4. Step 4: Simplify right side
    140,602.08x = 14,927,519,035.30
  5. Step 5: Solve for x
    x = 14,927,519,035.30/140,602.08
  6. Step 6: Final answer
    x = 106,168.55

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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.