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Finding the Fourth Proportional to 155,908.65, 233,950.68 and 84,836.46

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Solution

The fourth proportional to 155,908.65, 233,950.68 and 84,836.46 is: 127,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,908.65 : 233,950.68 = 84,836.46 : x
  2. Step 2: Convert to fraction form
    155,908.65/233,950.68 = 84,836.46/x
  3. Step 3: Cross multiply
    155,908.65x = 233,950.68 × 84,836.46
  4. Step 4: Simplify right side
    155,908.65x = 19,847,548,383.11
  5. Step 5: Solve for x
    x = 19,847,548,383.11/155,908.65
  6. Step 6: Final answer
    x = 127,302.42

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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.