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Finding the Fourth Proportional to 300,963.95, 451,601.14 and 141,056.13

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Solution

The fourth proportional to 300,963.95, 451,601.14 and 141,056.13 is: 211,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,963.95 : 451,601.14 = 141,056.13 : x
  2. Step 2: Convert to fraction form
    300,963.95/451,601.14 = 141,056.13/x
  3. Step 3: Cross multiply
    300,963.95x = 451,601.14 × 141,056.13
  4. Step 4: Simplify right side
    300,963.95x = 63,701,109,111.99
  5. Step 5: Solve for x
    x = 63,701,109,111.99/300,963.95
  6. Step 6: Final answer
    x = 211,656.94

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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.