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Finding the Fourth Proportional to 96,648.84, 133,435.22 and 64,428.84

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Solution

The fourth proportional to 96,648.84, 133,435.22 and 64,428.84 is: 88,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,648.84 : 133,435.22 = 64,428.84 : x
  2. Step 2: Convert to fraction form
    96,648.84/133,435.22 = 64,428.84/x
  3. Step 3: Cross multiply
    96,648.84x = 133,435.22 × 64,428.84
  4. Step 4: Simplify right side
    96,648.84x = 8,597,076,117.60
  5. Step 5: Solve for x
    x = 8,597,076,117.60/96,648.84
  6. Step 6: Final answer
    x = 88,951.67

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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.