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Finding the Fourth Proportional to 174,931.20, 262,243.20 and 104,838.40

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Solution

The fourth proportional to 174,931.20, 262,243.20 and 104,838.40 is: 157,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,931.20 : 262,243.20 = 104,838.40 : x
  2. Step 2: Convert to fraction form
    174,931.20/262,243.20 = 104,838.40/x
  3. Step 3: Cross multiply
    174,931.20x = 262,243.20 × 104,838.40
  4. Step 4: Simplify right side
    174,931.20x = 27,493,157,498.88
  5. Step 5: Solve for x
    x = 27,493,157,498.88/174,931.20
  6. Step 6: Final answer
    x = 157,165.55

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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.