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Finding the Fourth Proportional to 153,261.65, 211,598.25 and 104,944.43

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Solution

The fourth proportional to 153,261.65, 211,598.25 and 104,944.43 is: 144,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,261.65 : 211,598.25 = 104,944.43 : x
  2. Step 2: Convert to fraction form
    153,261.65/211,598.25 = 104,944.43/x
  3. Step 3: Cross multiply
    153,261.65x = 211,598.25 × 104,944.43
  4. Step 4: Simplify right side
    153,261.65x = 22,206,057,735.25
  5. Step 5: Solve for x
    x = 22,206,057,735.25/153,261.65
  6. Step 6: Final answer
    x = 144,889.85

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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.