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Finding the Fourth Proportional to 308,299.15, 425,449.61 and 180,950.14

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Solution

The fourth proportional to 308,299.15, 425,449.61 and 180,950.14 is: 249,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,299.15 : 425,449.61 = 180,950.14 : x
  2. Step 2: Convert to fraction form
    308,299.15/425,449.61 = 180,950.14/x
  3. Step 3: Cross multiply
    308,299.15x = 425,449.61 × 180,950.14
  4. Step 4: Simplify right side
    308,299.15x = 76,985,163,460.45
  5. Step 5: Solve for x
    x = 76,985,163,460.45/308,299.15
  6. Step 6: Final answer
    x = 249,709.30

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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.