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Finding the Fourth Proportional to 173,812.10, 260,746.95 and 74,020.10

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Solution

The fourth proportional to 173,812.10, 260,746.95 and 74,020.10 is: 111,042.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,812.10 : 260,746.95 = 74,020.10 : x
  2. Step 2: Convert to fraction form
    173,812.10/260,746.95 = 74,020.10/x
  3. Step 3: Cross multiply
    173,812.10x = 260,746.95 × 74,020.10
  4. Step 4: Simplify right side
    173,812.10x = 19,300,515,313.70
  5. Step 5: Solve for x
    x = 19,300,515,313.70/173,812.10
  6. Step 6: Final answer
    x = 111,042.41

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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.