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Finding the Fourth Proportional to 437,638.15, 656,567.94 and 122,094.82

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Solution

The fourth proportional to 437,638.15, 656,567.94 and 122,094.82 is: 183,173.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,638.15 : 656,567.94 = 122,094.82 : x
  2. Step 2: Convert to fraction form
    437,638.15/656,567.94 = 122,094.82/x
  3. Step 3: Cross multiply
    437,638.15x = 656,567.94 × 122,094.82
  4. Step 4: Simplify right side
    437,638.15x = 80,163,544,452.07
  5. Step 5: Solve for x
    x = 80,163,544,452.07/437,638.15
  6. Step 6: Final answer
    x = 183,173.12

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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.