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Finding the Fourth Proportional to 209,354.73, 313,905.66 and 93,928.15

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Solution

The fourth proportional to 209,354.73, 313,905.66 and 93,928.15 is: 140,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,354.73 : 313,905.66 = 93,928.15 : x
  2. Step 2: Convert to fraction form
    209,354.73/313,905.66 = 93,928.15/x
  3. Step 3: Cross multiply
    209,354.73x = 313,905.66 × 93,928.15
  4. Step 4: Simplify right side
    209,354.73x = 29,484,577,918.33
  5. Step 5: Solve for x
    x = 29,484,577,918.33/209,354.73
  6. Step 6: Final answer
    x = 140,835.50

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1.5x scale

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.