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Finding the Fourth Proportional to 358,336.78, 537,507.89 and 130,795.49

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Solution

The fourth proportional to 358,336.78, 537,507.89 and 130,795.49 is: 196,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,336.78 : 537,507.89 = 130,795.49 : x
  2. Step 2: Convert to fraction form
    358,336.78/537,507.89 = 130,795.49/x
  3. Step 3: Cross multiply
    358,336.78x = 537,507.89 × 130,795.49
  4. Step 4: Simplify right side
    358,336.78x = 70,303,609,031.69
  5. Step 5: Solve for x
    x = 70,303,609,031.69/358,336.78
  6. Step 6: Final answer
    x = 196,194.23

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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.