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Finding the Fourth Proportional to 172,101.80, 258,152.70 and 161,733.80

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Solution

The fourth proportional to 172,101.80, 258,152.70 and 161,733.80 is: 242,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,101.80 : 258,152.70 = 161,733.80 : x
  2. Step 2: Convert to fraction form
    172,101.80/258,152.70 = 161,733.80/x
  3. Step 3: Cross multiply
    172,101.80x = 258,152.70 × 161,733.80
  4. Step 4: Simplify right side
    172,101.80x = 41,752,017,151.26
  5. Step 5: Solve for x
    x = 41,752,017,151.26/172,101.80
  6. Step 6: Final answer
    x = 242,600.70

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1.5x scale

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.