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Finding the Fourth Proportional to 188,292.40, 282,438.60 and 63,631.60

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Solution

The fourth proportional to 188,292.40, 282,438.60 and 63,631.60 is: 95,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,292.40 : 282,438.60 = 63,631.60 : x
  2. Step 2: Convert to fraction form
    188,292.40/282,438.60 = 63,631.60/x
  3. Step 3: Cross multiply
    188,292.40x = 282,438.60 × 63,631.60
  4. Step 4: Simplify right side
    188,292.40x = 17,972,020,019.76
  5. Step 5: Solve for x
    x = 17,972,020,019.76/188,292.40
  6. Step 6: Final answer
    x = 95,447.40

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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.