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Finding the Fourth Proportional to 247,940.06, 342,159.54 and 134,763.08

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Solution

The fourth proportional to 247,940.06, 342,159.54 and 134,763.08 is: 185,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,940.06 : 342,159.54 = 134,763.08 : x
  2. Step 2: Convert to fraction form
    247,940.06/342,159.54 = 134,763.08/x
  3. Step 3: Cross multiply
    247,940.06x = 342,159.54 × 134,763.08
  4. Step 4: Simplify right side
    247,940.06x = 46,110,473,461.78
  5. Step 5: Solve for x
    x = 46,110,473,461.78/247,940.06
  6. Step 6: Final answer
    x = 185,974.28

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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.