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Finding the Fourth Proportional to 307,752.29, 424,696.54 and 178,722.50

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Solution

The fourth proportional to 307,752.29, 424,696.54 and 178,722.50 is: 246,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,752.29 : 424,696.54 = 178,722.50 : x
  2. Step 2: Convert to fraction form
    307,752.29/424,696.54 = 178,722.50/x
  3. Step 3: Cross multiply
    307,752.29x = 424,696.54 × 178,722.50
  4. Step 4: Simplify right side
    307,752.29x = 75,902,826,531.81
  5. Step 5: Solve for x
    x = 75,902,826,531.81/307,752.29
  6. Step 6: Final answer
    x = 246,636.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.