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Finding the Fourth Proportional to 169,140.64, 252,469.46 and 149,210.32

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Solution

The fourth proportional to 169,140.64, 252,469.46 and 149,210.32 is: 222,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,140.64 : 252,469.46 = 149,210.32 : x
  2. Step 2: Convert to fraction form
    169,140.64/252,469.46 = 149,210.32/x
  3. Step 3: Cross multiply
    169,140.64x = 252,469.46 × 149,210.32
  4. Step 4: Simplify right side
    169,140.64x = 37,671,048,916.83
  5. Step 5: Solve for x
    x = 37,671,048,916.83/169,140.64
  6. Step 6: Final answer
    x = 222,720.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.