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Finding the Fourth Proportional to 211,303.16, 316,954.73 and 110,080.25

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Solution

The fourth proportional to 211,303.16, 316,954.73 and 110,080.25 is: 165,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,303.16 : 316,954.73 = 110,080.25 : x
  2. Step 2: Convert to fraction form
    211,303.16/316,954.73 = 110,080.25/x
  3. Step 3: Cross multiply
    211,303.16x = 316,954.73 × 110,080.25
  4. Step 4: Simplify right side
    211,303.16x = 34,890,457,288.04
  5. Step 5: Solve for x
    x = 34,890,457,288.04/211,303.16
  6. Step 6: Final answer
    x = 165,120.38

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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.