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Finding the Fourth Proportional to 203,203.80, 304,805.70 and 98,033.40

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Solution

The fourth proportional to 203,203.80, 304,805.70 and 98,033.40 is: 147,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,203.80 : 304,805.70 = 98,033.40 : x
  2. Step 2: Convert to fraction form
    203,203.80/304,805.70 = 98,033.40/x
  3. Step 3: Cross multiply
    203,203.80x = 304,805.70 × 98,033.40
  4. Step 4: Simplify right side
    203,203.80x = 29,881,139,110.38
  5. Step 5: Solve for x
    x = 29,881,139,110.38/203,203.80
  6. Step 6: Final answer
    x = 147,050.10

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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.