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Finding the Fourth Proportional to 96,409.49, 132,915.53 and 67,690.67

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Solution

The fourth proportional to 96,409.49, 132,915.53 and 67,690.67 is: 93,322.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,409.49 : 132,915.53 = 67,690.67 : x
  2. Step 2: Convert to fraction form
    96,409.49/132,915.53 = 67,690.67/x
  3. Step 3: Cross multiply
    96,409.49x = 132,915.53 × 67,690.67
  4. Step 4: Simplify right side
    96,409.49x = 8,997,140,783.75
  5. Step 5: Solve for x
    x = 8,997,140,783.75/96,409.49
  6. Step 6: Final answer
    x = 93,322.15

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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.