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Finding the Fourth Proportional to 104,491.70, 144,197.25 and 56,745.38

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Solution

The fourth proportional to 104,491.70, 144,197.25 and 56,745.38 is: 78,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,491.70 : 144,197.25 = 56,745.38 : x
  2. Step 2: Convert to fraction form
    104,491.70/144,197.25 = 56,745.38/x
  3. Step 3: Cross multiply
    104,491.70x = 144,197.25 × 56,745.38
  4. Step 4: Simplify right side
    104,491.70x = 8,182,527,893.90
  5. Step 5: Solve for x
    x = 8,182,527,893.90/104,491.70
  6. Step 6: Final answer
    x = 78,307.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.