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Finding the Fourth Proportional to 382,115.60, 573,173.40 and 101,661.20

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Solution

The fourth proportional to 382,115.60, 573,173.40 and 101,661.20 is: 152,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,115.60 : 573,173.40 = 101,661.20 : x
  2. Step 2: Convert to fraction form
    382,115.60/573,173.40 = 101,661.20/x
  3. Step 3: Cross multiply
    382,115.60x = 573,173.40 × 101,661.20
  4. Step 4: Simplify right side
    382,115.60x = 58,269,495,652.08
  5. Step 5: Solve for x
    x = 58,269,495,652.08/382,115.60
  6. Step 6: Final answer
    x = 152,491.80

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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.