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Finding the Fourth Proportional to 336,031.20, 504,046.80 and 99,352.80

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Solution

The fourth proportional to 336,031.20, 504,046.80 and 99,352.80 is: 149,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,031.20 : 504,046.80 = 99,352.80 : x
  2. Step 2: Convert to fraction form
    336,031.20/504,046.80 = 99,352.80/x
  3. Step 3: Cross multiply
    336,031.20x = 504,046.80 × 99,352.80
  4. Step 4: Simplify right side
    336,031.20x = 50,078,460,911.04
  5. Step 5: Solve for x
    x = 50,078,460,911.04/336,031.20
  6. Step 6: Final answer
    x = 149,029.20

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1.5x scale

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.