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Finding the Fourth Proportional to 172,252.06, 258,137.52 and 83,482

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Solution

The fourth proportional to 172,252.06, 258,137.52 and 83,482 is: 125,106.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,252.06 : 258,137.52 = 83,482 : x
  2. Step 2: Convert to fraction form
    172,252.06/258,137.52 = 83,482/x
  3. Step 3: Cross multiply
    172,252.06x = 258,137.52 × 83,482
  4. Step 4: Simplify right side
    172,252.06x = 21,549,836,444.64
  5. Step 5: Solve for x
    x = 21,549,836,444.64/172,252.06
  6. Step 6: Final answer
    x = 125,106.41

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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.