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Finding the Fourth Proportional to 253,679.94, 350,080.89 and 153,058.50

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Solution

The fourth proportional to 253,679.94, 350,080.89 and 153,058.50 is: 211,222.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,679.94 : 350,080.89 = 153,058.50 : x
  2. Step 2: Convert to fraction form
    253,679.94/350,080.89 = 153,058.50/x
  3. Step 3: Cross multiply
    253,679.94x = 350,080.89 × 153,058.50
  4. Step 4: Simplify right side
    253,679.94x = 53,582,855,902.07
  5. Step 5: Solve for x
    x = 53,582,855,902.07/253,679.94
  6. Step 6: Final answer
    x = 211,222.28

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1.5x scale

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.