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Finding the Fourth Proportional to 366,957.02, 550,486.53 and 130,243.40

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Solution

The fourth proportional to 366,957.02, 550,486.53 and 130,243.40 is: 195,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,957.02 : 550,486.53 = 130,243.40 : x
  2. Step 2: Convert to fraction form
    366,957.02/550,486.53 = 130,243.40/x
  3. Step 3: Cross multiply
    366,957.02x = 550,486.53 × 130,243.40
  4. Step 4: Simplify right side
    366,957.02x = 71,697,237,321.40
  5. Step 5: Solve for x
    x = 71,697,237,321.40/366,957.02
  6. Step 6: Final answer
    x = 195,383.20

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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.