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Finding the Fourth Proportional to 273,000.70, 409,428.15 and 83,460.70

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Solution

The fourth proportional to 273,000.70, 409,428.15 and 83,460.70 is: 125,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,000.70 : 409,428.15 = 83,460.70 : x
  2. Step 2: Convert to fraction form
    273,000.70/409,428.15 = 83,460.70/x
  3. Step 3: Cross multiply
    273,000.70x = 409,428.15 × 83,460.70
  4. Step 4: Simplify right side
    273,000.70x = 34,171,159,998.71
  5. Step 5: Solve for x
    x = 34,171,159,998.71/273,000.70
  6. Step 6: Final answer
    x = 125,168.76

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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.