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Finding the Fourth Proportional to 168,068.20, 251,810.70 and 144,740.20

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Solution

The fourth proportional to 168,068.20, 251,810.70 and 144,740.20 is: 216,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,068.20 : 251,810.70 = 144,740.20 : x
  2. Step 2: Convert to fraction form
    168,068.20/251,810.70 = 144,740.20/x
  3. Step 3: Cross multiply
    168,068.20x = 251,810.70 × 144,740.20
  4. Step 4: Simplify right side
    168,068.20x = 36,447,131,080.14
  5. Step 5: Solve for x
    x = 36,447,131,080.14/168,068.20
  6. Step 6: Final answer
    x = 216,859.17

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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.