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Finding the Fourth Proportional to 165,643.98, 248,392.05 and 60,389.13

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Solution

The fourth proportional to 165,643.98, 248,392.05 and 60,389.13 is: 90,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,643.98 : 248,392.05 = 60,389.13 : x
  2. Step 2: Convert to fraction form
    165,643.98/248,392.05 = 60,389.13/x
  3. Step 3: Cross multiply
    165,643.98x = 248,392.05 × 60,389.13
  4. Step 4: Simplify right side
    165,643.98x = 15,000,179,798.42
  5. Step 5: Solve for x
    x = 15,000,179,798.42/165,643.98
  6. Step 6: Final answer
    x = 90,556.75

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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.