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Finding the Fourth Proportional to 200,090.88, 276,128.64 and 110,661.12

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Solution

The fourth proportional to 200,090.88, 276,128.64 and 110,661.12 is: 152,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,090.88 : 276,128.64 = 110,661.12 : x
  2. Step 2: Convert to fraction form
    200,090.88/276,128.64 = 110,661.12/x
  3. Step 3: Cross multiply
    200,090.88x = 276,128.64 × 110,661.12
  4. Step 4: Simplify right side
    200,090.88x = 30,556,704,566.48
  5. Step 5: Solve for x
    x = 30,556,704,566.48/200,090.88
  6. Step 6: Final answer
    x = 152,714.13

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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.