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Finding the Fourth Proportional to 248,949.34, 343,581 and 152,133.28

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Solution

The fourth proportional to 248,949.34, 343,581 and 152,133.28 is: 209,962.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,949.34 : 343,581 = 152,133.28 : x
  2. Step 2: Convert to fraction form
    248,949.34/343,581 = 152,133.28/x
  3. Step 3: Cross multiply
    248,949.34x = 343,581 × 152,133.28
  4. Step 4: Simplify right side
    248,949.34x = 52,270,104,475.68
  5. Step 5: Solve for x
    x = 52,270,104,475.68/248,949.34
  6. Step 6: Final answer
    x = 209,962.82

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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.