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Finding the Fourth Proportional to 118,414.70, 177,622.05 and 99,752.30

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Solution

The fourth proportional to 118,414.70, 177,622.05 and 99,752.30 is: 149,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,414.70 : 177,622.05 = 99,752.30 : x
  2. Step 2: Convert to fraction form
    118,414.70/177,622.05 = 99,752.30/x
  3. Step 3: Cross multiply
    118,414.70x = 177,622.05 × 99,752.30
  4. Step 4: Simplify right side
    118,414.70x = 17,718,208,018.22
  5. Step 5: Solve for x
    x = 17,718,208,018.22/118,414.70
  6. Step 6: Final answer
    x = 149,628.45

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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.