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Finding the Fourth Proportional to 341,612.51, 471,429.92 and 188,661.02

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Solution

The fourth proportional to 341,612.51, 471,429.92 and 188,661.02 is: 260,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,612.51 : 471,429.92 = 188,661.02 : x
  2. Step 2: Convert to fraction form
    341,612.51/471,429.92 = 188,661.02/x
  3. Step 3: Cross multiply
    341,612.51x = 471,429.92 × 188,661.02
  4. Step 4: Simplify right side
    341,612.51x = 88,940,447,680.22
  5. Step 5: Solve for x
    x = 88,940,447,680.22/341,612.51
  6. Step 6: Final answer
    x = 260,354.78

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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.