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Finding the Fourth Proportional to 68,779.60, 103,169.40 and 59,266.15

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Solution

The fourth proportional to 68,779.60, 103,169.40 and 59,266.15 is: 88,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,779.60 : 103,169.40 = 59,266.15 : x
  2. Step 2: Convert to fraction form
    68,779.60/103,169.40 = 59,266.15/x
  3. Step 3: Cross multiply
    68,779.60x = 103,169.40 × 59,266.15
  4. Step 4: Simplify right side
    68,779.60x = 6,114,453,135.81
  5. Step 5: Solve for x
    x = 6,114,453,135.81/68,779.60
  6. Step 6: Final answer
    x = 88,899.23

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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.