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Finding the Fourth Proportional to 248,566.50, 343,023.12 and 135,389.52

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Solution

The fourth proportional to 248,566.50, 343,023.12 and 135,389.52 is: 186,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,566.50 : 343,023.12 = 135,389.52 : x
  2. Step 2: Convert to fraction form
    248,566.50/343,023.12 = 135,389.52/x
  3. Step 3: Cross multiply
    248,566.50x = 343,023.12 × 135,389.52
  4. Step 4: Simplify right side
    248,566.50x = 46,441,735,565.70
  5. Step 5: Solve for x
    x = 46,441,735,565.70/248,566.50
  6. Step 6: Final answer
    x = 186,838.27

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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.