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Finding the Fourth Proportional to 96,559, 133,256.88 and 54,120.28

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Solution

The fourth proportional to 96,559, 133,256.88 and 54,120.28 is: 74,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,559 : 133,256.88 = 54,120.28 : x
  2. Step 2: Convert to fraction form
    96,559/133,256.88 = 54,120.28/x
  3. Step 3: Cross multiply
    96,559x = 133,256.88 × 54,120.28
  4. Step 4: Simplify right side
    96,559x = 7,211,899,657.53
  5. Step 5: Solve for x
    x = 7,211,899,657.53/96,559
  6. Step 6: Final answer
    x = 74,689.05

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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.