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Finding the Fourth Proportional to 162,916.92, 244,244.16 and 74,124.72

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Solution

The fourth proportional to 162,916.92, 244,244.16 and 74,124.72 is: 111,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,916.92 : 244,244.16 = 74,124.72 : x
  2. Step 2: Convert to fraction form
    162,916.92/244,244.16 = 74,124.72/x
  3. Step 3: Cross multiply
    162,916.92x = 244,244.16 × 74,124.72
  4. Step 4: Simplify right side
    162,916.92x = 18,104,529,971.64
  5. Step 5: Solve for x
    x = 18,104,529,971.64/162,916.92
  6. Step 6: Final answer
    x = 111,127.38

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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.