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Finding the Fourth Proportional to 200,334.40, 276,483.42 and 127,739.86

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Solution

The fourth proportional to 200,334.40, 276,483.42 and 127,739.86 is: 176,295.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,334.40 : 276,483.42 = 127,739.86 : x
  2. Step 2: Convert to fraction form
    200,334.40/276,483.42 = 127,739.86/x
  3. Step 3: Cross multiply
    200,334.40x = 276,483.42 × 127,739.86
  4. Step 4: Simplify right side
    200,334.40x = 35,317,953,363.12
  5. Step 5: Solve for x
    x = 35,317,953,363.12/200,334.40
  6. Step 6: Final answer
    x = 176,295.00

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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.