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Finding the Fourth Proportional to 200,398.34, 276,551.55 and 136,734.77

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Solution

The fourth proportional to 200,398.34, 276,551.55 and 136,734.77 is: 188,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,398.34 : 276,551.55 = 136,734.77 : x
  2. Step 2: Convert to fraction form
    200,398.34/276,551.55 = 136,734.77/x
  3. Step 3: Cross multiply
    200,398.34x = 276,551.55 × 136,734.77
  4. Step 4: Simplify right side
    200,398.34x = 37,814,211,199.64
  5. Step 5: Solve for x
    x = 37,814,211,199.64/200,398.34
  6. Step 6: Final answer
    x = 188,695.24

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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.