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Finding the Fourth Proportional to 297,364.21, 446,042.40 and 72,726.51

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Solution

The fourth proportional to 297,364.21, 446,042.40 and 72,726.51 is: 109,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,364.21 : 446,042.40 = 72,726.51 : x
  2. Step 2: Convert to fraction form
    297,364.21/446,042.40 = 72,726.51/x
  3. Step 3: Cross multiply
    297,364.21x = 446,042.40 × 72,726.51
  4. Step 4: Simplify right side
    297,364.21x = 32,439,107,064.02
  5. Step 5: Solve for x
    x = 32,439,107,064.02/297,364.21
  6. Step 6: Final answer
    x = 109,088.81

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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.