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Finding the Fourth Proportional to 172,152.32, 258,270.12 and 59,816.25

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Solution

The fourth proportional to 172,152.32, 258,270.12 and 59,816.25 is: 89,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,152.32 : 258,270.12 = 59,816.25 : x
  2. Step 2: Convert to fraction form
    172,152.32/258,270.12 = 59,816.25/x
  3. Step 3: Cross multiply
    172,152.32x = 258,270.12 × 59,816.25
  4. Step 4: Simplify right side
    172,152.32x = 15,448,750,065.45
  5. Step 5: Solve for x
    x = 15,448,750,065.45/172,152.32
  6. Step 6: Final answer
    x = 89,738.85

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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.