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Finding the Fourth Proportional to 259,863.48, 358,611.66 and 140,631.48

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Solution

The fourth proportional to 259,863.48, 358,611.66 and 140,631.48 is: 194,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,863.48 : 358,611.66 = 140,631.48 : x
  2. Step 2: Convert to fraction form
    259,863.48/358,611.66 = 140,631.48/x
  3. Step 3: Cross multiply
    259,863.48x = 358,611.66 × 140,631.48
  4. Step 4: Simplify right side
    259,863.48x = 50,432,088,491.06
  5. Step 5: Solve for x
    x = 50,432,088,491.06/259,863.48
  6. Step 6: Final answer
    x = 194,071.47

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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.