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Finding the Fourth Proportional to 98,568.63, 136,024.59 and 53,246.60

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Solution

The fourth proportional to 98,568.63, 136,024.59 and 53,246.60 is: 73,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,568.63 : 136,024.59 = 53,246.60 : x
  2. Step 2: Convert to fraction form
    98,568.63/136,024.59 = 53,246.60/x
  3. Step 3: Cross multiply
    98,568.63x = 136,024.59 × 53,246.60
  4. Step 4: Simplify right side
    98,568.63x = 7,242,846,933.89
  5. Step 5: Solve for x
    x = 7,242,846,933.89/98,568.63
  6. Step 6: Final answer
    x = 73,480.24

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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.