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Finding the Fourth Proportional to 200,656.82, 276,915.14 and 120,068.90

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Solution

The fourth proportional to 200,656.82, 276,915.14 and 120,068.90 is: 165,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,656.82 : 276,915.14 = 120,068.90 : x
  2. Step 2: Convert to fraction form
    200,656.82/276,915.14 = 120,068.90/x
  3. Step 3: Cross multiply
    200,656.82x = 276,915.14 × 120,068.90
  4. Step 4: Simplify right side
    200,656.82x = 33,248,894,268.23
  5. Step 5: Solve for x
    x = 33,248,894,268.23/200,656.82
  6. Step 6: Final answer
    x = 165,700.30

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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.