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Finding the Fourth Proportional to 448,044.40, 672,052.20 and 148,538.80

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Solution

The fourth proportional to 448,044.40, 672,052.20 and 148,538.80 is: 222,803.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,044.40 : 672,052.20 = 148,538.80 : x
  2. Step 2: Convert to fraction form
    448,044.40/672,052.20 = 148,538.80/x
  3. Step 3: Cross multiply
    448,044.40x = 672,052.20 × 148,538.80
  4. Step 4: Simplify right side
    448,044.40x = 99,825,827,325.36
  5. Step 5: Solve for x
    x = 99,825,827,325.36/448,044.40
  6. Step 6: Final answer
    x = 222,803.43

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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.