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Finding the Fourth Proportional to 172,994.84, 259,490.70 and 54,666.20

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Solution

The fourth proportional to 172,994.84, 259,490.70 and 54,666.20 is: 81,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,994.84 : 259,490.70 = 54,666.20 : x
  2. Step 2: Convert to fraction form
    172,994.84/259,490.70 = 54,666.20/x
  3. Step 3: Cross multiply
    172,994.84x = 259,490.70 × 54,666.20
  4. Step 4: Simplify right side
    172,994.84x = 14,185,369,206.89
  5. Step 5: Solve for x
    x = 14,185,369,206.89/172,994.84
  6. Step 6: Final answer
    x = 81,998.80

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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.