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Finding the Fourth Proportional to 98,775.48, 136,309.12 and 53,452.48

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Solution

The fourth proportional to 98,775.48, 136,309.12 and 53,452.48 is: 73,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,775.48 : 136,309.12 = 53,452.48 : x
  2. Step 2: Convert to fraction form
    98,775.48/136,309.12 = 53,452.48/x
  3. Step 3: Cross multiply
    98,775.48x = 136,309.12 × 53,452.48
  4. Step 4: Simplify right side
    98,775.48x = 7,286,060,510.62
  5. Step 5: Solve for x
    x = 7,286,060,510.62/98,775.48
  6. Step 6: Final answer
    x = 73,763.86

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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.