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Finding the Fourth Proportional to 382,549.80, 574,043.40 and 146,062.20

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Solution

The fourth proportional to 382,549.80, 574,043.40 and 146,062.20 is: 219,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,549.80 : 574,043.40 = 146,062.20 : x
  2. Step 2: Convert to fraction form
    382,549.80/574,043.40 = 146,062.20/x
  3. Step 3: Cross multiply
    382,549.80x = 574,043.40 × 146,062.20
  4. Step 4: Simplify right side
    382,549.80x = 83,846,041,899.48
  5. Step 5: Solve for x
    x = 83,846,041,899.48/382,549.80
  6. Step 6: Final answer
    x = 219,176.80

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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.