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Finding the Fourth Proportional to 70,442.95, 105,653.18 and 26,059.61

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Solution

The fourth proportional to 70,442.95, 105,653.18 and 26,059.61 is: 39,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.95 : 105,653.18 = 26,059.61 : x
  2. Step 2: Convert to fraction form
    70,442.95/105,653.18 = 26,059.61/x
  3. Step 3: Cross multiply
    70,442.95x = 105,653.18 × 26,059.61
  4. Step 4: Simplify right side
    70,442.95x = 2,753,280,202.94
  5. Step 5: Solve for x
    x = 2,753,280,202.94/70,442.95
  6. Step 6: Final answer
    x = 39,085.25

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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.