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Finding the Fourth Proportional to 223,734.39, 308,699.45 and 131,857.45

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Solution

The fourth proportional to 223,734.39, 308,699.45 and 131,857.45 is: 181,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,734.39 : 308,699.45 = 131,857.45 : x
  2. Step 2: Convert to fraction form
    223,734.39/308,699.45 = 131,857.45/x
  3. Step 3: Cross multiply
    223,734.39x = 308,699.45 × 131,857.45
  4. Step 4: Simplify right side
    223,734.39x = 40,704,322,293.40
  5. Step 5: Solve for x
    x = 40,704,322,293.40/223,734.39
  6. Step 6: Final answer
    x = 181,931.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.