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Finding the Fourth Proportional to 89,870.57, 134,809.29 and 23,308.95

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Solution

The fourth proportional to 89,870.57, 134,809.29 and 23,308.95 is: 34,964.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,870.57 : 134,809.29 = 23,308.95 : x
  2. Step 2: Convert to fraction form
    89,870.57/134,809.29 = 23,308.95/x
  3. Step 3: Cross multiply
    89,870.57x = 134,809.29 × 23,308.95
  4. Step 4: Simplify right side
    89,870.57x = 3,142,263,000.15
  5. Step 5: Solve for x
    x = 3,142,263,000.15/89,870.57
  6. Step 6: Final answer
    x = 34,964.32

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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.