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Finding the Fourth Proportional to 200,594.64, 276,851.10 and 128,028.88

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Solution

The fourth proportional to 200,594.64, 276,851.10 and 128,028.88 is: 176,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,594.64 : 276,851.10 = 128,028.88 : x
  2. Step 2: Convert to fraction form
    200,594.64/276,851.10 = 128,028.88/x
  3. Step 3: Cross multiply
    200,594.64x = 276,851.10 × 128,028.88
  4. Step 4: Simplify right side
    200,594.64x = 35,444,936,259.77
  5. Step 5: Solve for x
    x = 35,444,936,259.77/200,594.64
  6. Step 6: Final answer
    x = 176,699.32

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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.