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Finding the Fourth Proportional to 259,364.06, 388,935.90 and 101,567.42

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Solution

The fourth proportional to 259,364.06, 388,935.90 and 101,567.42 is: 152,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,364.06 : 388,935.90 = 101,567.42 : x
  2. Step 2: Convert to fraction form
    259,364.06/388,935.90 = 101,567.42/x
  3. Step 3: Cross multiply
    259,364.06x = 388,935.90 × 101,567.42
  4. Step 4: Simplify right side
    259,364.06x = 39,503,215,908.38
  5. Step 5: Solve for x
    x = 39,503,215,908.38/259,364.06
  6. Step 6: Final answer
    x = 152,307.98

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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.