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Finding the Fourth Proportional to 69,978.96, 96,516.36 and 44,830.80

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Solution

The fourth proportional to 69,978.96, 96,516.36 and 44,830.80 is: 61,831.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,978.96 : 96,516.36 = 44,830.80 : x
  2. Step 2: Convert to fraction form
    69,978.96/96,516.36 = 44,830.80/x
  3. Step 3: Cross multiply
    69,978.96x = 96,516.36 × 44,830.80
  4. Step 4: Simplify right side
    69,978.96x = 4,326,905,631.89
  5. Step 5: Solve for x
    x = 4,326,905,631.89/69,978.96
  6. Step 6: Final answer
    x = 61,831.52

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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.