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Finding the Fourth Proportional to 179,602.40, 269,230.80 and 139,599.20

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Solution

The fourth proportional to 179,602.40, 269,230.80 and 139,599.20 is: 209,264.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,602.40 : 269,230.80 = 139,599.20 : x
  2. Step 2: Convert to fraction form
    179,602.40/269,230.80 = 139,599.20/x
  3. Step 3: Cross multiply
    179,602.40x = 269,230.80 × 139,599.20
  4. Step 4: Simplify right side
    179,602.40x = 37,584,404,295.36
  5. Step 5: Solve for x
    x = 37,584,404,295.36/179,602.40
  6. Step 6: Final answer
    x = 209,264.49

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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.