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Finding the Fourth Proportional to 142,703.40, 213,860.70 and 95,183.40

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Solution

The fourth proportional to 142,703.40, 213,860.70 and 95,183.40 is: 142,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,703.40 : 213,860.70 = 95,183.40 : x
  2. Step 2: Convert to fraction form
    142,703.40/213,860.70 = 95,183.40/x
  3. Step 3: Cross multiply
    142,703.40x = 213,860.70 × 95,183.40
  4. Step 4: Simplify right side
    142,703.40x = 20,355,988,552.38
  5. Step 5: Solve for x
    x = 20,355,988,552.38/142,703.40
  6. Step 6: Final answer
    x = 142,645.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.