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Finding the Fourth Proportional to 76,154.65, 114,107.13 and 53,928.11

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Solution

The fourth proportional to 76,154.65, 114,107.13 and 53,928.11 is: 80,803.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,154.65 : 114,107.13 = 53,928.11 : x
  2. Step 2: Convert to fraction form
    76,154.65/114,107.13 = 53,928.11/x
  3. Step 3: Cross multiply
    76,154.65x = 114,107.13 × 53,928.11
  4. Step 4: Simplify right side
    76,154.65x = 6,153,582,143.69
  5. Step 5: Solve for x
    x = 6,153,582,143.69/76,154.65
  6. Step 6: Final answer
    x = 80,803.76

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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.