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Finding the Fourth Proportional to 448,348.26, 672,521.12 and 148,851.58

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Solution

The fourth proportional to 448,348.26, 672,521.12 and 148,851.58 is: 223,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,348.26 : 672,521.12 = 148,851.58 : x
  2. Step 2: Convert to fraction form
    448,348.26/672,521.12 = 148,851.58/x
  3. Step 3: Cross multiply
    448,348.26x = 672,521.12 × 148,851.58
  4. Step 4: Simplify right side
    448,348.26x = 100,105,831,295.37
  5. Step 5: Solve for x
    x = 100,105,831,295.37/448,348.26
  6. Step 6: Final answer
    x = 223,276.95

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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.