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Finding the Fourth Proportional to 273,916.40, 410,918.76 and 84,376.74

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Solution

The fourth proportional to 273,916.40, 410,918.76 and 84,376.74 is: 126,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,916.40 : 410,918.76 = 84,376.74 : x
  2. Step 2: Convert to fraction form
    273,916.40/410,918.76 = 84,376.74/x
  3. Step 3: Cross multiply
    273,916.40x = 410,918.76 × 84,376.74
  4. Step 4: Simplify right side
    273,916.40x = 34,671,985,373.64
  5. Step 5: Solve for x
    x = 34,671,985,373.64/273,916.40
  6. Step 6: Final answer
    x = 126,578.71

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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.