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Finding the Fourth Proportional to 118,087.80, 177,131.70 and 110,254.20

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Solution

The fourth proportional to 118,087.80, 177,131.70 and 110,254.20 is: 165,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,087.80 : 177,131.70 = 110,254.20 : x
  2. Step 2: Convert to fraction form
    118,087.80/177,131.70 = 110,254.20/x
  3. Step 3: Cross multiply
    118,087.80x = 177,131.70 × 110,254.20
  4. Step 4: Simplify right side
    118,087.80x = 19,529,513,878.14
  5. Step 5: Solve for x
    x = 19,529,513,878.14/118,087.80
  6. Step 6: Final answer
    x = 165,381.30

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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.