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Finding the Fourth Proportional to 69,792.66, 96,353.32 and 53,409.08

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Solution

The fourth proportional to 69,792.66, 96,353.32 and 53,409.08 is: 73,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,792.66 : 96,353.32 = 53,409.08 : x
  2. Step 2: Convert to fraction form
    69,792.66/96,353.32 = 53,409.08/x
  3. Step 3: Cross multiply
    69,792.66x = 96,353.32 × 53,409.08
  4. Step 4: Simplify right side
    69,792.66x = 5,146,142,176.15
  5. Step 5: Solve for x
    x = 5,146,142,176.15/69,792.66
  6. Step 6: Final answer
    x = 73,734.72

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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.