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Finding the Fourth Proportional to 277,079.59, 382,362.18 and 156,219.82

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Solution

The fourth proportional to 277,079.59, 382,362.18 and 156,219.82 is: 215,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,079.59 : 382,362.18 = 156,219.82 : x
  2. Step 2: Convert to fraction form
    277,079.59/382,362.18 = 156,219.82/x
  3. Step 3: Cross multiply
    277,079.59x = 382,362.18 × 156,219.82
  4. Step 4: Simplify right side
    277,079.59x = 59,732,549,022.60
  5. Step 5: Solve for x
    x = 59,732,549,022.60/277,079.59
  6. Step 6: Final answer
    x = 215,579.03

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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.