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Finding the Fourth Proportional to 200,451.04, 276,400.76 and 127,738.74

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Solution

The fourth proportional to 200,451.04, 276,400.76 and 127,738.74 is: 176,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,451.04 : 276,400.76 = 127,738.74 : x
  2. Step 2: Convert to fraction form
    200,451.04/276,400.76 = 127,738.74/x
  3. Step 3: Cross multiply
    200,451.04x = 276,400.76 × 127,738.74
  4. Step 4: Simplify right side
    200,451.04x = 35,307,085,215.25
  5. Step 5: Solve for x
    x = 35,307,085,215.25/200,451.04
  6. Step 6: Final answer
    x = 176,138.20

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1.5x scale

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.