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Finding the Fourth Proportional to 277,568.10, 383,022.60 and 156,721.32

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Solution

The fourth proportional to 277,568.10, 383,022.60 and 156,721.32 is: 216,263.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,568.10 : 383,022.60 = 156,721.32 : x
  2. Step 2: Convert to fraction form
    277,568.10/383,022.60 = 156,721.32/x
  3. Step 3: Cross multiply
    277,568.10x = 383,022.60 × 156,721.32
  4. Step 4: Simplify right side
    277,568.10x = 60,027,807,461.83
  5. Step 5: Solve for x
    x = 60,027,807,461.83/277,568.10
  6. Step 6: Final answer
    x = 216,263.35

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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.