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Finding the Fourth Proportional to 262,472.70, 362,212.23 and 143,240.70

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Solution

The fourth proportional to 262,472.70, 362,212.23 and 143,240.70 is: 197,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,472.70 : 362,212.23 = 143,240.70 : x
  2. Step 2: Convert to fraction form
    262,472.70/362,212.23 = 143,240.70/x
  3. Step 3: Cross multiply
    262,472.70x = 362,212.23 × 143,240.70
  4. Step 4: Simplify right side
    262,472.70x = 51,883,533,373.76
  5. Step 5: Solve for x
    x = 51,883,533,373.76/262,472.70
  6. Step 6: Final answer
    x = 197,672.11

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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.