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Finding the Fourth Proportional to 194,911.68, 292,166.64 and 74,936.10

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Solution

The fourth proportional to 194,911.68, 292,166.64 and 74,936.10 is: 112,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,911.68 : 292,166.64 = 74,936.10 : x
  2. Step 2: Convert to fraction form
    194,911.68/292,166.64 = 74,936.10/x
  3. Step 3: Cross multiply
    194,911.68x = 292,166.64 × 74,936.10
  4. Step 4: Simplify right side
    194,911.68x = 21,893,828,551.70
  5. Step 5: Solve for x
    x = 21,893,828,551.70/194,911.68
  6. Step 6: Final answer
    x = 112,326.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.