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Finding the Fourth Proportional to 346,908.94, 478,758.54 and 193,976.92

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Solution

The fourth proportional to 346,908.94, 478,758.54 and 193,976.92 is: 267,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,908.94 : 478,758.54 = 193,976.92 : x
  2. Step 2: Convert to fraction form
    346,908.94/478,758.54 = 193,976.92/x
  3. Step 3: Cross multiply
    346,908.94x = 478,758.54 × 193,976.92
  4. Step 4: Simplify right side
    346,908.94x = 92,868,107,012.90
  5. Step 5: Solve for x
    x = 92,868,107,012.90/346,908.94
  6. Step 6: Final answer
    x = 267,701.68

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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.