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Finding the Fourth Proportional to 307,861.51, 461,861.52 and 108,195.70

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Solution

The fourth proportional to 307,861.51, 461,861.52 and 108,195.70 is: 162,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,861.51 : 461,861.52 = 108,195.70 : x
  2. Step 2: Convert to fraction form
    307,861.51/461,861.52 = 108,195.70/x
  3. Step 3: Cross multiply
    307,861.51x = 461,861.52 × 108,195.70
  4. Step 4: Simplify right side
    307,861.51x = 49,971,430,459.46
  5. Step 5: Solve for x
    x = 49,971,430,459.46/307,861.51
  6. Step 6: Final answer
    x = 162,317.89

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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.