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Finding the Fourth Proportional to 98,873.69, 136,445.42 and 53,551.49

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Solution

The fourth proportional to 98,873.69, 136,445.42 and 53,551.49 is: 73,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,873.69 : 136,445.42 = 53,551.49 : x
  2. Step 2: Convert to fraction form
    98,873.69/136,445.42 = 53,551.49/x
  3. Step 3: Cross multiply
    98,873.69x = 136,445.42 × 53,551.49
  4. Step 4: Simplify right side
    98,873.69x = 7,306,854,594.69
  5. Step 5: Solve for x
    x = 7,306,854,594.69/98,873.69
  6. Step 6: Final answer
    x = 73,900.90

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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.