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Finding the Fourth Proportional to 145,847.72, 218,771.53 and 35,039.72

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Solution

The fourth proportional to 145,847.72, 218,771.53 and 35,039.72 is: 52,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,847.72 : 218,771.53 = 35,039.72 : x
  2. Step 2: Convert to fraction form
    145,847.72/218,771.53 = 35,039.72/x
  3. Step 3: Cross multiply
    145,847.72x = 218,771.53 × 35,039.72
  4. Step 4: Simplify right side
    145,847.72x = 7,665,693,811.60
  5. Step 5: Solve for x
    x = 7,665,693,811.60/145,847.72
  6. Step 6: Final answer
    x = 52,559.57

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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.