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Finding the Fourth Proportional to 91,852.20, 137,745.90 and 41,956.20

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Solution

The fourth proportional to 91,852.20, 137,745.90 and 41,956.20 is: 62,919.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,852.20 : 137,745.90 = 41,956.20 : x
  2. Step 2: Convert to fraction form
    91,852.20/137,745.90 = 41,956.20/x
  3. Step 3: Cross multiply
    91,852.20x = 137,745.90 × 41,956.20
  4. Step 4: Simplify right side
    91,852.20x = 5,779,294,529.58
  5. Step 5: Solve for x
    x = 5,779,294,529.58/91,852.20
  6. Step 6: Final answer
    x = 62,919.50

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1.5x scale

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.