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Finding the Fourth Proportional to 374,671.72, 562,137.18 and 217,037.80

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Solution

The fourth proportional to 374,671.72, 562,137.18 and 217,037.80 is: 325,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,671.72 : 562,137.18 = 217,037.80 : x
  2. Step 2: Convert to fraction form
    374,671.72/562,137.18 = 217,037.80/x
  3. Step 3: Cross multiply
    374,671.72x = 562,137.18 × 217,037.80
  4. Step 4: Simplify right side
    374,671.72x = 122,005,016,845.40
  5. Step 5: Solve for x
    x = 122,005,016,845.40/374,671.72
  6. Step 6: Final answer
    x = 325,631.77

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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.