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Finding the Fourth Proportional to 248,754.24, 343,284.48 and 153,206.64

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Solution

The fourth proportional to 248,754.24, 343,284.48 and 153,206.64 is: 211,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,754.24 : 343,284.48 = 153,206.64 : x
  2. Step 2: Convert to fraction form
    248,754.24/343,284.48 = 153,206.64/x
  3. Step 3: Cross multiply
    248,754.24x = 343,284.48 × 153,206.64
  4. Step 4: Simplify right side
    248,754.24x = 52,593,461,744.95
  5. Step 5: Solve for x
    x = 52,593,461,744.95/248,754.24
  6. Step 6: Final answer
    x = 211,427.40

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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.