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Finding the Fourth Proportional to 84,289.89, 116,323.59 and 48,479.94

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Solution

The fourth proportional to 84,289.89, 116,323.59 and 48,479.94 is: 66,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,289.89 : 116,323.59 = 48,479.94 : x
  2. Step 2: Convert to fraction form
    84,289.89/116,323.59 = 48,479.94/x
  3. Step 3: Cross multiply
    84,289.89x = 116,323.59 × 48,479.94
  4. Step 4: Simplify right side
    84,289.89x = 5,639,360,663.78
  5. Step 5: Solve for x
    x = 5,639,360,663.78/84,289.89
  6. Step 6: Final answer
    x = 66,904.35

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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.