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Finding the Fourth Proportional to 306,145.40, 459,218.10 and 95,847.80

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Solution

The fourth proportional to 306,145.40, 459,218.10 and 95,847.80 is: 143,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,145.40 : 459,218.10 = 95,847.80 : x
  2. Step 2: Convert to fraction form
    306,145.40/459,218.10 = 95,847.80/x
  3. Step 3: Cross multiply
    306,145.40x = 459,218.10 × 95,847.80
  4. Step 4: Simplify right side
    306,145.40x = 44,015,044,605.18
  5. Step 5: Solve for x
    x = 44,015,044,605.18/306,145.40
  6. Step 6: Final answer
    x = 143,771.70

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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.