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Finding the Fourth Proportional to 190,825.01, 287,609.15 and 164,488.88

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Solution

The fourth proportional to 190,825.01, 287,609.15 and 164,488.88 is: 247,915.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,825.01 : 287,609.15 = 164,488.88 : x
  2. Step 2: Convert to fraction form
    190,825.01/287,609.15 = 164,488.88/x
  3. Step 3: Cross multiply
    190,825.01x = 287,609.15 × 164,488.88
  4. Step 4: Simplify right side
    190,825.01x = 47,308,504,700.76
  5. Step 5: Solve for x
    x = 47,308,504,700.76/190,825.01
  6. Step 6: Final answer
    x = 247,915.64

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.