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Finding the Fourth Proportional to 84,981.60, 127,361.52 and 35,004.72

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Solution

The fourth proportional to 84,981.60, 127,361.52 and 35,004.72 is: 52,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,981.60 : 127,361.52 = 35,004.72 : x
  2. Step 2: Convert to fraction form
    84,981.60/127,361.52 = 35,004.72/x
  3. Step 3: Cross multiply
    84,981.60x = 127,361.52 × 35,004.72
  4. Step 4: Simplify right side
    84,981.60x = 4,458,254,346.37
  5. Step 5: Solve for x
    x = 4,458,254,346.37/84,981.60
  6. Step 6: Final answer
    x = 52,461.41

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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.