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Finding the Fourth Proportional to 89,903.58, 134,808.45 and 26,715

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Solution

The fourth proportional to 89,903.58, 134,808.45 and 26,715 is: 40,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,903.58 : 134,808.45 = 26,715 : x
  2. Step 2: Convert to fraction form
    89,903.58/134,808.45 = 26,715/x
  3. Step 3: Cross multiply
    89,903.58x = 134,808.45 × 26,715
  4. Step 4: Simplify right side
    89,903.58x = 3,601,407,741.75
  5. Step 5: Solve for x
    x = 3,601,407,741.75/89,903.58
  6. Step 6: Final answer
    x = 40,058.56

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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.