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Finding the Fourth Proportional to 96,396.32, 132,938.24 and 81,440.48

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Solution

The fourth proportional to 96,396.32, 132,938.24 and 81,440.48 is: 112,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,396.32 : 132,938.24 = 81,440.48 : x
  2. Step 2: Convert to fraction form
    96,396.32/132,938.24 = 81,440.48/x
  3. Step 3: Cross multiply
    96,396.32x = 132,938.24 × 81,440.48
  4. Step 4: Simplify right side
    96,396.32x = 10,826,554,075.96
  5. Step 5: Solve for x
    x = 10,826,554,075.96/96,396.32
  6. Step 6: Final answer
    x = 112,312.94

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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.