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Finding the Fourth Proportional to 260,548.65, 359,645.81 and 153,150.55

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Solution

The fourth proportional to 260,548.65, 359,645.81 and 153,150.55 is: 211,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,548.65 : 359,645.81 = 153,150.55 : x
  2. Step 2: Convert to fraction form
    260,548.65/359,645.81 = 153,150.55/x
  3. Step 3: Cross multiply
    260,548.65x = 359,645.81 × 153,150.55
  4. Step 4: Simplify right side
    260,548.65x = 55,079,951,941.83
  5. Step 5: Solve for x
    x = 55,079,951,941.83/260,548.65
  6. Step 6: Final answer
    x = 211,399.87

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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.