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Finding the Fourth Proportional to 203,471.75, 304,897.77 and 103,482.11

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Solution

The fourth proportional to 203,471.75, 304,897.77 and 103,482.11 is: 155,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,471.75 : 304,897.77 = 103,482.11 : x
  2. Step 2: Convert to fraction form
    203,471.75/304,897.77 = 103,482.11/x
  3. Step 3: Cross multiply
    203,471.75x = 304,897.77 × 103,482.11
  4. Step 4: Simplify right side
    203,471.75x = 31,551,464,573.89
  5. Step 5: Solve for x
    x = 31,551,464,573.89/203,471.75
  6. Step 6: Final answer
    x = 155,065.58

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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.