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Finding the Fourth Proportional to 207,037.80, 310,556.70 and 144,052.20

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Solution

The fourth proportional to 207,037.80, 310,556.70 and 144,052.20 is: 216,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,037.80 : 310,556.70 = 144,052.20 : x
  2. Step 2: Convert to fraction form
    207,037.80/310,556.70 = 144,052.20/x
  3. Step 3: Cross multiply
    207,037.80x = 310,556.70 × 144,052.20
  4. Step 4: Simplify right side
    207,037.80x = 44,736,375,859.74
  5. Step 5: Solve for x
    x = 44,736,375,859.74/207,037.80
  6. Step 6: Final answer
    x = 216,078.30

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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.