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Finding the Fourth Proportional to 96,648.56, 133,374.96 and 56,364.08

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Solution

The fourth proportional to 96,648.56, 133,374.96 and 56,364.08 is: 77,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,648.56 : 133,374.96 = 56,364.08 : x
  2. Step 2: Convert to fraction form
    96,648.56/133,374.96 = 56,364.08/x
  3. Step 3: Cross multiply
    96,648.56x = 133,374.96 × 56,364.08
  4. Step 4: Simplify right side
    96,648.56x = 7,517,556,915.44
  5. Step 5: Solve for x
    x = 7,517,556,915.44/96,648.56
  6. Step 6: Final answer
    x = 77,782.40

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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.