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Finding the Fourth Proportional to 342,618.54, 513,632.28 and 164,881.04

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Solution

The fourth proportional to 342,618.54, 513,632.28 and 164,881.04 is: 247,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,618.54 : 513,632.28 = 164,881.04 : x
  2. Step 2: Convert to fraction form
    342,618.54/513,632.28 = 164,881.04/x
  3. Step 3: Cross multiply
    342,618.54x = 513,632.28 × 164,881.04
  4. Step 4: Simplify right side
    342,618.54x = 84,688,224,503.97
  5. Step 5: Solve for x
    x = 84,688,224,503.97/342,618.54
  6. Step 6: Final answer
    x = 247,179.34

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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.