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Finding the Fourth Proportional to 76,455.70, 114,683.55 and 60,709.30

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Solution

The fourth proportional to 76,455.70, 114,683.55 and 60,709.30 is: 91,063.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.70 : 114,683.55 = 60,709.30 : x
  2. Step 2: Convert to fraction form
    76,455.70/114,683.55 = 60,709.30/x
  3. Step 3: Cross multiply
    76,455.70x = 114,683.55 × 60,709.30
  4. Step 4: Simplify right side
    76,455.70x = 6,962,358,042.02
  5. Step 5: Solve for x
    x = 6,962,358,042.02/76,455.70
  6. Step 6: Final answer
    x = 91,063.95

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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.