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Finding the Fourth Proportional to 367,090.30, 550,505.85 and 130,440.70

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Solution

The fourth proportional to 367,090.30, 550,505.85 and 130,440.70 is: 195,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,090.30 : 550,505.85 = 130,440.70 : x
  2. Step 2: Convert to fraction form
    367,090.30/550,505.85 = 130,440.70/x
  3. Step 3: Cross multiply
    367,090.30x = 550,505.85 × 130,440.70
  4. Step 4: Simplify right side
    367,090.30x = 71,808,368,428.10
  5. Step 5: Solve for x
    x = 71,808,368,428.10/367,090.30
  6. Step 6: Final answer
    x = 195,615.00

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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.