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Finding the Fourth Proportional to 260,966.18, 360,858.30 and 207,157.88

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Solution

The fourth proportional to 260,966.18, 360,858.30 and 207,157.88 is: 286,453.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,966.18 : 360,858.30 = 207,157.88 : x
  2. Step 2: Convert to fraction form
    260,966.18/360,858.30 = 207,157.88/x
  3. Step 3: Cross multiply
    260,966.18x = 360,858.30 × 207,157.88
  4. Step 4: Simplify right side
    260,966.18x = 74,754,640,408.40
  5. Step 5: Solve for x
    x = 74,754,640,408.40/260,966.18
  6. Step 6: Final answer
    x = 286,453.36

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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.