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Finding the Fourth Proportional to 114,911.37, 158,446.92 and 80,908.98

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Solution

The fourth proportional to 114,911.37, 158,446.92 and 80,908.98 is: 111,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,911.37 : 158,446.92 = 80,908.98 : x
  2. Step 2: Convert to fraction form
    114,911.37/158,446.92 = 80,908.98/x
  3. Step 3: Cross multiply
    114,911.37x = 158,446.92 × 80,908.98
  4. Step 4: Simplify right side
    114,911.37x = 12,819,778,681.34
  5. Step 5: Solve for x
    x = 12,819,778,681.34/114,911.37
  6. Step 6: Final answer
    x = 111,562.32

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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.