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Finding the Fourth Proportional to 248,586.71, 343,037.85 and 141,142.64

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Solution

The fourth proportional to 248,586.71, 343,037.85 and 141,142.64 is: 194,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,586.71 : 343,037.85 = 141,142.64 : x
  2. Step 2: Convert to fraction form
    248,586.71/343,037.85 = 141,142.64/x
  3. Step 3: Cross multiply
    248,586.71x = 343,037.85 × 141,142.64
  4. Step 4: Simplify right side
    248,586.71x = 48,417,267,768.92
  5. Step 5: Solve for x
    x = 48,417,267,768.92/248,586.71
  6. Step 6: Final answer
    x = 194,770.14

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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.