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Finding the Fourth Proportional to 76,527.45, 114,212.45 and 74,534.54

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Solution

The fourth proportional to 76,527.45, 114,212.45 and 74,534.54 is: 111,238.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,527.45 : 114,212.45 = 74,534.54 : x
  2. Step 2: Convert to fraction form
    76,527.45/114,212.45 = 74,534.54/x
  3. Step 3: Cross multiply
    76,527.45x = 114,212.45 × 74,534.54
  4. Step 4: Simplify right side
    76,527.45x = 8,512,772,038.30
  5. Step 5: Solve for x
    x = 8,512,772,038.30/76,527.45
  6. Step 6: Final answer
    x = 111,238.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.