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Finding the Fourth Proportional to 96,007.70, 144,011.55 and 80,455.70

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Solution

The fourth proportional to 96,007.70, 144,011.55 and 80,455.70 is: 120,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,007.70 : 144,011.55 = 80,455.70 : x
  2. Step 2: Convert to fraction form
    96,007.70/144,011.55 = 80,455.70/x
  3. Step 3: Cross multiply
    96,007.70x = 144,011.55 × 80,455.70
  4. Step 4: Simplify right side
    96,007.70x = 11,586,550,063.34
  5. Step 5: Solve for x
    x = 11,586,550,063.34/96,007.70
  6. Step 6: Final answer
    x = 120,683.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.