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Finding the Fourth Proportional to 95,243, 131,428.48 and 52,215.60

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Solution

The fourth proportional to 95,243, 131,428.48 and 52,215.60 is: 72,053.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,243 : 131,428.48 = 52,215.60 : x
  2. Step 2: Convert to fraction form
    95,243/131,428.48 = 52,215.60/x
  3. Step 3: Cross multiply
    95,243x = 131,428.48 × 52,215.60
  4. Step 4: Simplify right side
    95,243x = 6,862,616,940.29
  5. Step 5: Solve for x
    x = 6,862,616,940.29/95,243
  6. Step 6: Final answer
    x = 72,053.77

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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.