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Finding the Fourth Proportional to 209,955.80, 314,933.70 and 157,467.80

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Solution

The fourth proportional to 209,955.80, 314,933.70 and 157,467.80 is: 236,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,955.80 : 314,933.70 = 157,467.80 : x
  2. Step 2: Convert to fraction form
    209,955.80/314,933.70 = 157,467.80/x
  3. Step 3: Cross multiply
    209,955.80x = 314,933.70 × 157,467.80
  4. Step 4: Simplify right side
    209,955.80x = 49,591,916,884.86
  5. Step 5: Solve for x
    x = 49,591,916,884.86/209,955.80
  6. Step 6: Final answer
    x = 236,201.70

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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.