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Finding the Fourth Proportional to 96,885.78, 133,696.11 and 56,610.90

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Solution

The fourth proportional to 96,885.78, 133,696.11 and 56,610.90 is: 78,119.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,885.78 : 133,696.11 = 56,610.90 : x
  2. Step 2: Convert to fraction form
    96,885.78/133,696.11 = 56,610.90/x
  3. Step 3: Cross multiply
    96,885.78x = 133,696.11 × 56,610.90
  4. Step 4: Simplify right side
    96,885.78x = 7,568,657,113.60
  5. Step 5: Solve for x
    x = 7,568,657,113.60/96,885.78
  6. Step 6: Final answer
    x = 78,119.38

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1.5x scale

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.