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Finding the Fourth Proportional to 168,410.40, 251,382.72 and 148,482

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Solution

The fourth proportional to 168,410.40, 251,382.72 and 148,482 is: 221,636.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,410.40 : 251,382.72 = 148,482 : x
  2. Step 2: Convert to fraction form
    168,410.40/251,382.72 = 148,482/x
  3. Step 3: Cross multiply
    168,410.40x = 251,382.72 × 148,482
  4. Step 4: Simplify right side
    168,410.40x = 37,325,809,031.04
  5. Step 5: Solve for x
    x = 37,325,809,031.04/168,410.40
  6. Step 6: Final answer
    x = 221,636.01

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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.