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Finding the Fourth Proportional to 248,609.93, 372,968.89 and 90,838.13

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Solution

The fourth proportional to 248,609.93, 372,968.89 and 90,838.13 is: 136,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,609.93 : 372,968.89 = 90,838.13 : x
  2. Step 2: Convert to fraction form
    248,609.93/372,968.89 = 90,838.13/x
  3. Step 3: Cross multiply
    248,609.93x = 372,968.89 × 90,838.13
  4. Step 4: Simplify right side
    248,609.93x = 33,879,794,423.84
  5. Step 5: Solve for x
    x = 33,879,794,423.84/248,609.93
  6. Step 6: Final answer
    x = 136,276.92

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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.