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Finding the Fourth Proportional to 117,360.80, 175,846.80 and 99,864.80

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Solution

The fourth proportional to 117,360.80, 175,846.80 and 99,864.80 is: 149,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,360.80 : 175,846.80 = 99,864.80 : x
  2. Step 2: Convert to fraction form
    117,360.80/175,846.80 = 99,864.80/x
  3. Step 3: Cross multiply
    117,360.80x = 175,846.80 × 99,864.80
  4. Step 4: Simplify right side
    117,360.80x = 17,560,905,512.64
  5. Step 5: Solve for x
    x = 17,560,905,512.64/117,360.80
  6. Step 6: Final answer
    x = 149,631.78

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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.