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Finding the Fourth Proportional to 373,068.12, 514,707.66 and 227,820.90

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Solution

The fourth proportional to 373,068.12, 514,707.66 and 227,820.90 is: 314,315.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,068.12 : 514,707.66 = 227,820.90 : x
  2. Step 2: Convert to fraction form
    373,068.12/514,707.66 = 227,820.90/x
  3. Step 3: Cross multiply
    373,068.12x = 514,707.66 × 227,820.90
  4. Step 4: Simplify right side
    373,068.12x = 117,261,162,338.09
  5. Step 5: Solve for x
    x = 117,261,162,338.09/373,068.12
  6. Step 6: Final answer
    x = 314,315.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.