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Finding the Fourth Proportional to 254,068.13, 381,127.71 and 67,079.63

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Solution

The fourth proportional to 254,068.13, 381,127.71 and 67,079.63 is: 100,626.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,068.13 : 381,127.71 = 67,079.63 : x
  2. Step 2: Convert to fraction form
    254,068.13/381,127.71 = 67,079.63/x
  3. Step 3: Cross multiply
    254,068.13x = 381,127.71 × 67,079.63
  4. Step 4: Simplify right side
    254,068.13x = 25,565,903,863.91
  5. Step 5: Solve for x
    x = 25,565,903,863.91/254,068.13
  6. Step 6: Final answer
    x = 100,626.18

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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.