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Finding the Fourth Proportional to 118,700.84, 177,928.22 and 74,225.49

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Solution

The fourth proportional to 118,700.84, 177,928.22 and 74,225.49 is: 111,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,700.84 : 177,928.22 = 74,225.49 : x
  2. Step 2: Convert to fraction form
    118,700.84/177,928.22 = 74,225.49/x
  3. Step 3: Cross multiply
    118,700.84x = 177,928.22 × 74,225.49
  4. Step 4: Simplify right side
    118,700.84x = 13,206,808,943.20
  5. Step 5: Solve for x
    x = 13,206,808,943.20/118,700.84
  6. Step 6: Final answer
    x = 111,261.30

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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.