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Finding the Fourth Proportional to 118,216.70, 177,325.05 and 107,330.30

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Solution

The fourth proportional to 118,216.70, 177,325.05 and 107,330.30 is: 160,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,216.70 : 177,325.05 = 107,330.30 : x
  2. Step 2: Convert to fraction form
    118,216.70/177,325.05 = 107,330.30/x
  3. Step 3: Cross multiply
    118,216.70x = 177,325.05 × 107,330.30
  4. Step 4: Simplify right side
    118,216.70x = 19,032,350,814.02
  5. Step 5: Solve for x
    x = 19,032,350,814.02/118,216.70
  6. Step 6: Final answer
    x = 160,995.45

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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.