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Finding the Fourth Proportional to 145,995.76, 218,993.64 and 35,187.76

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Solution

The fourth proportional to 145,995.76, 218,993.64 and 35,187.76 is: 52,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,995.76 : 218,993.64 = 35,187.76 : x
  2. Step 2: Convert to fraction form
    145,995.76/218,993.64 = 35,187.76/x
  3. Step 3: Cross multiply
    145,995.76x = 218,993.64 × 35,187.76
  4. Step 4: Simplify right side
    145,995.76x = 7,705,895,645.85
  5. Step 5: Solve for x
    x = 7,705,895,645.85/145,995.76
  6. Step 6: Final answer
    x = 52,781.64

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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.