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Finding the Fourth Proportional to 98,917.17, 136,505.50 and 53,596.30

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Solution

The fourth proportional to 98,917.17, 136,505.50 and 53,596.30 is: 73,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,917.17 : 136,505.50 = 53,596.30 : x
  2. Step 2: Convert to fraction form
    98,917.17/136,505.50 = 53,596.30/x
  3. Step 3: Cross multiply
    98,917.17x = 136,505.50 × 53,596.30
  4. Step 4: Simplify right side
    98,917.17x = 7,316,189,729.65
  5. Step 5: Solve for x
    x = 7,316,189,729.65/98,917.17
  6. Step 6: Final answer
    x = 73,962.79

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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.