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Finding the Fourth Proportional to 98,569.58, 136,025.90 and 53,247.56

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Solution

The fourth proportional to 98,569.58, 136,025.90 and 53,247.56 is: 73,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569.58 : 136,025.90 = 53,247.56 : x
  2. Step 2: Convert to fraction form
    98,569.58/136,025.90 = 53,247.56/x
  3. Step 3: Cross multiply
    98,569.58x = 136,025.90 × 53,247.56
  4. Step 4: Simplify right side
    98,569.58x = 7,243,047,271.80
  5. Step 5: Solve for x
    x = 7,243,047,271.80/98,569.58
  6. Step 6: Final answer
    x = 73,481.57

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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.