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Finding the Fourth Proportional to 358,090.56, 537,170.90 and 130,448.03

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Solution

The fourth proportional to 358,090.56, 537,170.90 and 130,448.03 is: 195,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,090.56 : 537,170.90 = 130,448.03 : x
  2. Step 2: Convert to fraction form
    358,090.56/537,170.90 = 130,448.03/x
  3. Step 3: Cross multiply
    358,090.56x = 537,170.90 × 130,448.03
  4. Step 4: Simplify right side
    358,090.56x = 70,072,882,340.23
  5. Step 5: Solve for x
    x = 70,072,882,340.23/358,090.56
  6. Step 6: Final answer
    x = 195,684.81

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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.