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Finding the Fourth Proportional to 98,894.66, 136,475.27 and 53,572.64

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Solution

The fourth proportional to 98,894.66, 136,475.27 and 53,572.64 is: 73,930.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,894.66 : 136,475.27 = 53,572.64 : x
  2. Step 2: Convert to fraction form
    98,894.66/136,475.27 = 53,572.64/x
  3. Step 3: Cross multiply
    98,894.66x = 136,475.27 × 53,572.64
  4. Step 4: Simplify right side
    98,894.66x = 7,311,339,759.27
  5. Step 5: Solve for x
    x = 7,311,339,759.27/98,894.66
  6. Step 6: Final answer
    x = 73,930.59

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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.