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Finding the Fourth Proportional to 336,123.13, 504,185.70 and 86,805.13

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Solution

The fourth proportional to 336,123.13, 504,185.70 and 86,805.13 is: 130,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,123.13 : 504,185.70 = 86,805.13 : x
  2. Step 2: Convert to fraction form
    336,123.13/504,185.70 = 86,805.13/x
  3. Step 3: Cross multiply
    336,123.13x = 504,185.70 × 86,805.13
  4. Step 4: Simplify right side
    336,123.13x = 43,765,905,232.64
  5. Step 5: Solve for x
    x = 43,765,905,232.64/336,123.13
  6. Step 6: Final answer
    x = 130,207.95

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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.