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Finding the Fourth Proportional to 366,810.60, 550,313.10 and 130,128.60

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Solution

The fourth proportional to 366,810.60, 550,313.10 and 130,128.60 is: 195,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,810.60 : 550,313.10 = 130,128.60 : x
  2. Step 2: Convert to fraction form
    366,810.60/550,313.10 = 130,128.60/x
  3. Step 3: Cross multiply
    366,810.60x = 550,313.10 × 130,128.60
  4. Step 4: Simplify right side
    366,810.60x = 71,611,473,264.66
  5. Step 5: Solve for x
    x = 71,611,473,264.66/366,810.60
  6. Step 6: Final answer
    x = 195,227.38

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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.