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Finding the Fourth Proportional to 248,581.71, 343,030.95 and 141,137.64

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Solution

The fourth proportional to 248,581.71, 343,030.95 and 141,137.64 is: 194,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,581.71 : 343,030.95 = 141,137.64 : x
  2. Step 2: Convert to fraction form
    248,581.71/343,030.95 = 141,137.64/x
  3. Step 3: Cross multiply
    248,581.71x = 343,030.95 × 141,137.64
  4. Step 4: Simplify right side
    248,581.71x = 48,414,578,729.96
  5. Step 5: Solve for x
    x = 48,414,578,729.96/248,581.71
  6. Step 6: Final answer
    x = 194,763.24

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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.