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Finding the Fourth Proportional to 260,976.72, 360,130.82 and 153,525.98

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Solution

The fourth proportional to 260,976.72, 360,130.82 and 153,525.98 is: 211,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,976.72 : 360,130.82 = 153,525.98 : x
  2. Step 2: Convert to fraction form
    260,976.72/360,130.82 = 153,525.98/x
  3. Step 3: Cross multiply
    260,976.72x = 360,130.82 × 153,525.98
  4. Step 4: Simplify right side
    260,976.72x = 55,289,437,068.70
  5. Step 5: Solve for x
    x = 55,289,437,068.70/260,976.72
  6. Step 6: Final answer
    x = 211,855.82

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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.