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Finding the Fourth Proportional to 177,640.88, 266,645.88 and 118,887.12

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Solution

The fourth proportional to 177,640.88, 266,645.88 and 118,887.12 is: 178,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,640.88 : 266,645.88 = 118,887.12 : x
  2. Step 2: Convert to fraction form
    177,640.88/266,645.88 = 118,887.12/x
  3. Step 3: Cross multiply
    177,640.88x = 266,645.88 × 118,887.12
  4. Step 4: Simplify right side
    177,640.88x = 31,700,760,733.07
  5. Step 5: Solve for x
    x = 31,700,760,733.07/177,640.88
  6. Step 6: Final answer
    x = 178,454.20

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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.