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Finding the Fourth Proportional to 448,088.25, 672,198.75 and 144,380.64

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Solution

The fourth proportional to 448,088.25, 672,198.75 and 144,380.64 is: 216,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,088.25 : 672,198.75 = 144,380.64 : x
  2. Step 2: Convert to fraction form
    448,088.25/672,198.75 = 144,380.64/x
  3. Step 3: Cross multiply
    448,088.25x = 672,198.75 × 144,380.64
  4. Step 4: Simplify right side
    448,088.25x = 97,052,485,732.20
  5. Step 5: Solve for x
    x = 97,052,485,732.20/448,088.25
  6. Step 6: Final answer
    x = 216,592.35

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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.