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Finding the Fourth Proportional to 260,532.56, 359,420.78 and 153,054.11

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Solution

The fourth proportional to 260,532.56, 359,420.78 and 153,054.11 is: 211,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,532.56 : 359,420.78 = 153,054.11 : x
  2. Step 2: Convert to fraction form
    260,532.56/359,420.78 = 153,054.11/x
  3. Step 3: Cross multiply
    260,532.56x = 359,420.78 × 153,054.11
  4. Step 4: Simplify right side
    260,532.56x = 55,010,825,036.03
  5. Step 5: Solve for x
    x = 55,010,825,036.03/260,532.56
  6. Step 6: Final answer
    x = 211,147.61

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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.