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Finding the Fourth Proportional to 70,915.30, 97,879.78 and 44,078.08

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Solution

The fourth proportional to 70,915.30, 97,879.78 and 44,078.08 is: 60,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,915.30 : 97,879.78 = 44,078.08 : x
  2. Step 2: Convert to fraction form
    70,915.30/97,879.78 = 44,078.08/x
  3. Step 3: Cross multiply
    70,915.30x = 97,879.78 × 44,078.08
  4. Step 4: Simplify right side
    70,915.30x = 4,314,352,773.22
  5. Step 5: Solve for x
    x = 4,314,352,773.22/70,915.30
  6. Step 6: Final answer
    x = 60,838.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.