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Finding the Fourth Proportional to 115,783.84, 173,672.52 and 36,902.80

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Solution

The fourth proportional to 115,783.84, 173,672.52 and 36,902.80 is: 55,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,783.84 : 173,672.52 = 36,902.80 : x
  2. Step 2: Convert to fraction form
    115,783.84/173,672.52 = 36,902.80/x
  3. Step 3: Cross multiply
    115,783.84x = 173,672.52 × 36,902.80
  4. Step 4: Simplify right side
    115,783.84x = 6,409,002,271.06
  5. Step 5: Solve for x
    x = 6,409,002,271.06/115,783.84
  6. Step 6: Final answer
    x = 55,353.17

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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.