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Finding the Fourth Proportional to 154,047.30, 230,742.90 and 124,522.80

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Solution

The fourth proportional to 154,047.30, 230,742.90 and 124,522.80 is: 186,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.30 : 230,742.90 = 124,522.80 : x
  2. Step 2: Convert to fraction form
    154,047.30/230,742.90 = 124,522.80/x
  3. Step 3: Cross multiply
    154,047.30x = 230,742.90 × 124,522.80
  4. Step 4: Simplify right side
    154,047.30x = 28,732,751,988.12
  5. Step 5: Solve for x
    x = 28,732,751,988.12/154,047.30
  6. Step 6: Final answer
    x = 186,519.02

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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.