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Finding the Fourth Proportional to 352,671.90, 529,056.45 and 127,977.90

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Solution

The fourth proportional to 352,671.90, 529,056.45 and 127,977.90 is: 191,984.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,671.90 : 529,056.45 = 127,977.90 : x
  2. Step 2: Convert to fraction form
    352,671.90/529,056.45 = 127,977.90/x
  3. Step 3: Cross multiply
    352,671.90x = 529,056.45 × 127,977.90
  4. Step 4: Simplify right side
    352,671.90x = 67,707,533,452.46
  5. Step 5: Solve for x
    x = 67,707,533,452.46/352,671.90
  6. Step 6: Final answer
    x = 191,984.49

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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.