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Finding the Fourth Proportional to 262,442.92, 393,726.85 and 84,949.92

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Solution

The fourth proportional to 262,442.92, 393,726.85 and 84,949.92 is: 127,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,442.92 : 393,726.85 = 84,949.92 : x
  2. Step 2: Convert to fraction form
    262,442.92/393,726.85 = 84,949.92/x
  3. Step 3: Cross multiply
    262,442.92x = 393,726.85 × 84,949.92
  4. Step 4: Simplify right side
    262,442.92x = 33,447,064,409.35
  5. Step 5: Solve for x
    x = 33,447,064,409.35/262,442.92
  6. Step 6: Final answer
    x = 127,445.10

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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.