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Finding the Fourth Proportional to 492,700.73, 739,077.48 and 155,715.74

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Solution

The fourth proportional to 492,700.73, 739,077.48 and 155,715.74 is: 233,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,700.73 : 739,077.48 = 155,715.74 : x
  2. Step 2: Convert to fraction form
    492,700.73/739,077.48 = 155,715.74/x
  3. Step 3: Cross multiply
    492,700.73x = 739,077.48 × 155,715.74
  4. Step 4: Simplify right side
    492,700.73x = 115,085,996,715.54
  5. Step 5: Solve for x
    x = 115,085,996,715.54/492,700.73
  6. Step 6: Final answer
    x = 233,581.95

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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.