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Finding the Fourth Proportional to 259,472.18, 358,071.44 and 140,240.18

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Solution

The fourth proportional to 259,472.18, 358,071.44 and 140,240.18 is: 193,531.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,472.18 : 358,071.44 = 140,240.18 : x
  2. Step 2: Convert to fraction form
    259,472.18/358,071.44 = 140,240.18/x
  3. Step 3: Cross multiply
    259,472.18x = 358,071.44 × 140,240.18
  4. Step 4: Simplify right side
    259,472.18x = 50,216,003,198.46
  5. Step 5: Solve for x
    x = 50,216,003,198.46/259,472.18
  6. Step 6: Final answer
    x = 193,531.36

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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.