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Finding the Fourth Proportional to 248,107.34, 342,426.35 and 140,654.56

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Solution

The fourth proportional to 248,107.34, 342,426.35 and 140,654.56 is: 194,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,107.34 : 342,426.35 = 140,654.56 : x
  2. Step 2: Convert to fraction form
    248,107.34/342,426.35 = 140,654.56/x
  3. Step 3: Cross multiply
    248,107.34x = 342,426.35 × 140,654.56
  4. Step 4: Simplify right side
    248,107.34x = 48,163,827,591.66
  5. Step 5: Solve for x
    x = 48,163,827,591.66/248,107.34
  6. Step 6: Final answer
    x = 194,124.96

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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.