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Finding the Fourth Proportional to 177,622.80, 266,434.20 and 128,050.80

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Solution

The fourth proportional to 177,622.80, 266,434.20 and 128,050.80 is: 192,076.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,622.80 : 266,434.20 = 128,050.80 : x
  2. Step 2: Convert to fraction form
    177,622.80/266,434.20 = 128,050.80/x
  3. Step 3: Cross multiply
    177,622.80x = 266,434.20 × 128,050.80
  4. Step 4: Simplify right side
    177,622.80x = 34,117,112,457.36
  5. Step 5: Solve for x
    x = 34,117,112,457.36/177,622.80
  6. Step 6: Final answer
    x = 192,076.20

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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.