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Finding the Fourth Proportional to 70,779.88, 106,136.86 and 41,206.16

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Solution

The fourth proportional to 70,779.88, 106,136.86 and 41,206.16 is: 61,790.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,779.88 : 106,136.86 = 41,206.16 : x
  2. Step 2: Convert to fraction form
    70,779.88/106,136.86 = 41,206.16/x
  3. Step 3: Cross multiply
    70,779.88x = 106,136.86 × 41,206.16
  4. Step 4: Simplify right side
    70,779.88x = 4,373,492,435.06
  5. Step 5: Solve for x
    x = 4,373,492,435.06/70,779.88
  6. Step 6: Final answer
    x = 61,790.05

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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.