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Finding the Fourth Proportional to 341,316.72, 471,013.79 and 188,356.32

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Solution

The fourth proportional to 341,316.72, 471,013.79 and 188,356.32 is: 259,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,316.72 : 471,013.79 = 188,356.32 : x
  2. Step 2: Convert to fraction form
    341,316.72/471,013.79 = 188,356.32/x
  3. Step 3: Cross multiply
    341,316.72x = 471,013.79 × 188,356.32
  4. Step 4: Simplify right side
    341,316.72x = 88,718,423,211.87
  5. Step 5: Solve for x
    x = 88,718,423,211.87/341,316.72
  6. Step 6: Final answer
    x = 259,929.91

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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.