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Finding the Fourth Proportional to 98,674.08, 136,168.20 and 53,962.08

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Solution

The fourth proportional to 98,674.08, 136,168.20 and 53,962.08 is: 74,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,674.08 : 136,168.20 = 53,962.08 : x
  2. Step 2: Convert to fraction form
    98,674.08/136,168.20 = 53,962.08/x
  3. Step 3: Cross multiply
    98,674.08x = 136,168.20 × 53,962.08
  4. Step 4: Simplify right side
    98,674.08x = 7,347,919,301.86
  5. Step 5: Solve for x
    x = 7,347,919,301.86/98,674.08
  6. Step 6: Final answer
    x = 74,466.56

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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.