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Finding the Fourth Proportional to 341,991.76, 471,947.64 and 191,088.88

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Solution

The fourth proportional to 341,991.76, 471,947.64 and 191,088.88 is: 263,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,991.76 : 471,947.64 = 191,088.88 : x
  2. Step 2: Convert to fraction form
    341,991.76/471,947.64 = 191,088.88/x
  3. Step 3: Cross multiply
    341,991.76x = 471,947.64 × 191,088.88
  4. Step 4: Simplify right side
    341,991.76x = 90,183,945,946.24
  5. Step 5: Solve for x
    x = 90,183,945,946.24/341,991.76
  6. Step 6: Final answer
    x = 263,702.10

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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.