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Finding the Fourth Proportional to 453,876.96, 680,916.54 and 138,358.44

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Solution

The fourth proportional to 453,876.96, 680,916.54 and 138,358.44 is: 207,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,876.96 : 680,916.54 = 138,358.44 : x
  2. Step 2: Convert to fraction form
    453,876.96/680,916.54 = 138,358.44/x
  3. Step 3: Cross multiply
    453,876.96x = 680,916.54 × 138,358.44
  4. Step 4: Simplify right side
    453,876.96x = 94,210,550,244.60
  5. Step 5: Solve for x
    x = 94,210,550,244.60/453,876.96
  6. Step 6: Final answer
    x = 207,568.48

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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.