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Finding the Fourth Proportional to 248,567.72, 372,900.32 and 98,780.09

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Solution

The fourth proportional to 248,567.72, 372,900.32 and 98,780.09 is: 148,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,567.72 : 372,900.32 = 98,780.09 : x
  2. Step 2: Convert to fraction form
    248,567.72/372,900.32 = 98,780.09/x
  3. Step 3: Cross multiply
    248,567.72x = 372,900.32 × 98,780.09
  4. Step 4: Simplify right side
    248,567.72x = 36,835,126,676.73
  5. Step 5: Solve for x
    x = 36,835,126,676.73/248,567.72
  6. Step 6: Final answer
    x = 148,189.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.