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Finding the Fourth Proportional to 366,688.60, 550,130.10 and 130,006.60

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Solution

The fourth proportional to 366,688.60, 550,130.10 and 130,006.60 is: 195,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,688.60 : 550,130.10 = 130,006.60 : x
  2. Step 2: Convert to fraction form
    366,688.60/550,130.10 = 130,006.60/x
  3. Step 3: Cross multiply
    366,688.60x = 550,130.10 × 130,006.60
  4. Step 4: Simplify right side
    366,688.60x = 71,520,543,858.66
  5. Step 5: Solve for x
    x = 71,520,543,858.66/366,688.60
  6. Step 6: Final answer
    x = 195,044.36

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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.