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Finding the Fourth Proportional to 98,889.55, 136,467.25 and 53,567.42

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Solution

The fourth proportional to 98,889.55, 136,467.25 and 53,567.42 is: 73,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,889.55 : 136,467.25 = 53,567.42 : x
  2. Step 2: Convert to fraction form
    98,889.55/136,467.25 = 53,567.42/x
  3. Step 3: Cross multiply
    98,889.55x = 136,467.25 × 53,567.42
  4. Step 4: Simplify right side
    98,889.55x = 7,310,197,680.74
  5. Step 5: Solve for x
    x = 7,310,197,680.74/98,889.55
  6. Step 6: Final answer
    x = 73,922.85

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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.