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Finding the Fourth Proportional to 255,787.18, 352,988.94 and 141,069.94

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Solution

The fourth proportional to 255,787.18, 352,988.94 and 141,069.94 is: 194,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,787.18 : 352,988.94 = 141,069.94 : x
  2. Step 2: Convert to fraction form
    255,787.18/352,988.94 = 141,069.94/x
  3. Step 3: Cross multiply
    255,787.18x = 352,988.94 × 141,069.94
  4. Step 4: Simplify right side
    255,787.18x = 49,796,128,586.46
  5. Step 5: Solve for x
    x = 49,796,128,586.46/255,787.18
  6. Step 6: Final answer
    x = 194,677.97

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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.