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Finding the Fourth Proportional to 336,544.80, 504,830.16 and 87,220.32

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Solution

The fourth proportional to 336,544.80, 504,830.16 and 87,220.32 is: 130,833.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,544.80 : 504,830.16 = 87,220.32 : x
  2. Step 2: Convert to fraction form
    336,544.80/504,830.16 = 87,220.32/x
  3. Step 3: Cross multiply
    336,544.80x = 504,830.16 × 87,220.32
  4. Step 4: Simplify right side
    336,544.80x = 44,031,448,100.85
  5. Step 5: Solve for x
    x = 44,031,448,100.85/336,544.80
  6. Step 6: Final answer
    x = 130,833.84

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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.