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Finding the Fourth Proportional to 273,048.30, 409,572.45 and 249,428.70

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Solution

The fourth proportional to 273,048.30, 409,572.45 and 249,428.70 is: 374,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,048.30 : 409,572.45 = 249,428.70 : x
  2. Step 2: Convert to fraction form
    273,048.30/409,572.45 = 249,428.70/x
  3. Step 3: Cross multiply
    273,048.30x = 409,572.45 × 249,428.70
  4. Step 4: Simplify right side
    273,048.30x = 102,159,123,759.32
  5. Step 5: Solve for x
    x = 102,159,123,759.32/273,048.30
  6. Step 6: Final answer
    x = 374,143.05

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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.