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Finding the Fourth Proportional to 174,903.80, 262,355.70 and 139,911.80

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Solution

The fourth proportional to 174,903.80, 262,355.70 and 139,911.80 is: 209,867.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,903.80 : 262,355.70 = 139,911.80 : x
  2. Step 2: Convert to fraction form
    174,903.80/262,355.70 = 139,911.80/x
  3. Step 3: Cross multiply
    174,903.80x = 262,355.70 × 139,911.80
  4. Step 4: Simplify right side
    174,903.80x = 36,706,658,227.26
  5. Step 5: Solve for x
    x = 36,706,658,227.26/174,903.80
  6. Step 6: Final answer
    x = 209,867.70

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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.