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Finding the Fourth Proportional to 448,353.74, 672,384.35 and 148,753.89

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Solution

The fourth proportional to 448,353.74, 672,384.35 and 148,753.89 is: 223,082.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,353.74 : 672,384.35 = 148,753.89 : x
  2. Step 2: Convert to fraction form
    448,353.74/672,384.35 = 148,753.89/x
  3. Step 3: Cross multiply
    448,353.74x = 672,384.35 × 148,753.89
  4. Step 4: Simplify right side
    448,353.74x = 100,019,786,893.85
  5. Step 5: Solve for x
    x = 100,019,786,893.85/448,353.74
  6. Step 6: Final answer
    x = 223,082.31

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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.