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Finding the Fourth Proportional to 113,365.70, 170,048.55 and 34,480

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Solution

The fourth proportional to 113,365.70, 170,048.55 and 34,480 is: 51,720

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,365.70 : 170,048.55 = 34,480 : x
  2. Step 2: Convert to fraction form
    113,365.70/170,048.55 = 34,480/x
  3. Step 3: Cross multiply
    113,365.70x = 170,048.55 × 34,480
  4. Step 4: Simplify right side
    113,365.70x = 5,863,274,004
  5. Step 5: Solve for x
    x = 5,863,274,004/113,365.70
  6. Step 6: Final answer
    x = 51,720

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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.