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Finding the Fourth Proportional to 194,710.36, 291,811.02 and 99,860.44

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Solution

The fourth proportional to 194,710.36, 291,811.02 and 99,860.44 is: 149,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,710.36 : 291,811.02 = 99,860.44 : x
  2. Step 2: Convert to fraction form
    194,710.36/291,811.02 = 99,860.44/x
  3. Step 3: Cross multiply
    194,710.36x = 291,811.02 × 99,860.44
  4. Step 4: Simplify right side
    194,710.36x = 29,140,376,854.05
  5. Step 5: Solve for x
    x = 29,140,376,854.05/194,710.36
  6. Step 6: Final answer
    x = 149,660.13

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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.