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Finding the Fourth Proportional to 134,700.82, 202,130 and 74,779.75

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Solution

The fourth proportional to 134,700.82, 202,130 and 74,779.75 is: 112,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,700.82 : 202,130 = 74,779.75 : x
  2. Step 2: Convert to fraction form
    134,700.82/202,130 = 74,779.75/x
  3. Step 3: Cross multiply
    134,700.82x = 202,130 × 74,779.75
  4. Step 4: Simplify right side
    134,700.82x = 15,115,230,867.50
  5. Step 5: Solve for x
    x = 15,115,230,867.50/134,700.82
  6. Step 6: Final answer
    x = 112,213.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.