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Finding the Fourth Proportional to 448,002.30, 672,134.64 and 132,467.40

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Solution

The fourth proportional to 448,002.30, 672,134.64 and 132,467.40 is: 198,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,002.30 : 672,134.64 = 132,467.40 : x
  2. Step 2: Convert to fraction form
    448,002.30/672,134.64 = 132,467.40/x
  3. Step 3: Cross multiply
    448,002.30x = 672,134.64 × 132,467.40
  4. Step 4: Simplify right side
    448,002.30x = 89,035,928,210.74
  5. Step 5: Solve for x
    x = 89,035,928,210.74/448,002.30
  6. Step 6: Final answer
    x = 198,739.89

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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.