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Finding the Fourth Proportional to 336,386.74, 504,663.14 and 99,729.42

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Solution

The fourth proportional to 336,386.74, 504,663.14 and 99,729.42 is: 149,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,386.74 : 504,663.14 = 99,729.42 : x
  2. Step 2: Convert to fraction form
    336,386.74/504,663.14 = 99,729.42/x
  3. Step 3: Cross multiply
    336,386.74x = 504,663.14 × 99,729.42
  4. Step 4: Simplify right side
    336,386.74x = 50,329,762,247.58
  5. Step 5: Solve for x
    x = 50,329,762,247.58/336,386.74
  6. Step 6: Final answer
    x = 149,618.75

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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.