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Finding the Fourth Proportional to 352,877.80, 486,962.94 and 191,729.20

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Solution

The fourth proportional to 352,877.80, 486,962.94 and 191,729.20 is: 264,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,877.80 : 486,962.94 = 191,729.20 : x
  2. Step 2: Convert to fraction form
    352,877.80/486,962.94 = 191,729.20/x
  3. Step 3: Cross multiply
    352,877.80x = 486,962.94 × 191,729.20
  4. Step 4: Simplify right side
    352,877.80x = 93,365,014,915.85
  5. Step 5: Solve for x
    x = 93,365,014,915.85/352,877.80
  6. Step 6: Final answer
    x = 264,581.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.