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Finding the Fourth Proportional to 208,032.80, 311,530.80 and 166,560.80

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Solution

The fourth proportional to 208,032.80, 311,530.80 and 166,560.80 is: 249,426.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,032.80 : 311,530.80 = 166,560.80 : x
  2. Step 2: Convert to fraction form
    208,032.80/311,530.80 = 166,560.80/x
  3. Step 3: Cross multiply
    208,032.80x = 311,530.80 × 166,560.80
  4. Step 4: Simplify right side
    208,032.80x = 51,888,819,272.64
  5. Step 5: Solve for x
    x = 51,888,819,272.64/208,032.80
  6. Step 6: Final answer
    x = 249,426.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.