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Finding the Fourth Proportional to 213,991.17, 295,307.34 and 123,346.53

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Solution

The fourth proportional to 213,991.17, 295,307.34 and 123,346.53 is: 170,217.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,991.17 : 295,307.34 = 123,346.53 : x
  2. Step 2: Convert to fraction form
    213,991.17/295,307.34 = 123,346.53/x
  3. Step 3: Cross multiply
    213,991.17x = 295,307.34 × 123,346.53
  4. Step 4: Simplify right side
    213,991.17x = 36,425,135,209.98
  5. Step 5: Solve for x
    x = 36,425,135,209.98/213,991.17
  6. Step 6: Final answer
    x = 170,217.94

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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.