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Finding the Fourth Proportional to 382,230.20, 573,345.30 and 115,977.80

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Solution

The fourth proportional to 382,230.20, 573,345.30 and 115,977.80 is: 173,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,230.20 : 573,345.30 = 115,977.80 : x
  2. Step 2: Convert to fraction form
    382,230.20/573,345.30 = 115,977.80/x
  3. Step 3: Cross multiply
    382,230.20x = 573,345.30 × 115,977.80
  4. Step 4: Simplify right side
    382,230.20x = 66,495,326,534.34
  5. Step 5: Solve for x
    x = 66,495,326,534.34/382,230.20
  6. Step 6: Final answer
    x = 173,966.70

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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.