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Finding the Fourth Proportional to 248,406.93, 372,282.26 and 90,483.66

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Solution

The fourth proportional to 248,406.93, 372,282.26 and 90,483.66 is: 135,605.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,406.93 : 372,282.26 = 90,483.66 : x
  2. Step 2: Convert to fraction form
    248,406.93/372,282.26 = 90,483.66/x
  3. Step 3: Cross multiply
    248,406.93x = 372,282.26 × 90,483.66
  4. Step 4: Simplify right side
    248,406.93x = 33,685,460,985.45
  5. Step 5: Solve for x
    x = 33,685,460,985.45/248,406.93
  6. Step 6: Final answer
    x = 135,605.96

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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.