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Finding the Fourth Proportional to 173,361.20, 260,041.80 and 84,671.60

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Solution

The fourth proportional to 173,361.20, 260,041.80 and 84,671.60 is: 127,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,361.20 : 260,041.80 = 84,671.60 : x
  2. Step 2: Convert to fraction form
    173,361.20/260,041.80 = 84,671.60/x
  3. Step 3: Cross multiply
    173,361.20x = 260,041.80 × 84,671.60
  4. Step 4: Simplify right side
    173,361.20x = 22,018,155,272.88
  5. Step 5: Solve for x
    x = 22,018,155,272.88/173,361.20
  6. Step 6: Final answer
    x = 127,007.40

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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.