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Finding the Fourth Proportional to 174,886.40, 262,593.60 and 139,721.60

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Solution

The fourth proportional to 174,886.40, 262,593.60 and 139,721.60 is: 209,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,886.40 : 262,593.60 = 139,721.60 : x
  2. Step 2: Convert to fraction form
    174,886.40/262,593.60 = 139,721.60/x
  3. Step 3: Cross multiply
    174,886.40x = 262,593.60 × 139,721.60
  4. Step 4: Simplify right side
    174,886.40x = 36,689,997,941.76
  5. Step 5: Solve for x
    x = 36,689,997,941.76/174,886.40
  6. Step 6: Final answer
    x = 209,793.32

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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.