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Finding the Fourth Proportional to 148,653.17, 205,141.50 and 80,670.14

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Solution

The fourth proportional to 148,653.17, 205,141.50 and 80,670.14 is: 111,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,653.17 : 205,141.50 = 80,670.14 : x
  2. Step 2: Convert to fraction form
    148,653.17/205,141.50 = 80,670.14/x
  3. Step 3: Cross multiply
    148,653.17x = 205,141.50 × 80,670.14
  4. Step 4: Simplify right side
    148,653.17x = 16,548,793,783.75
  5. Step 5: Solve for x
    x = 16,548,793,783.75/148,653.17
  6. Step 6: Final answer
    x = 111,324.86

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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.