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Finding the Fourth Proportional to 177,706.80, 266,122.80 and 118,220.40

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Solution

The fourth proportional to 177,706.80, 266,122.80 and 118,220.40 is: 177,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,706.80 : 266,122.80 = 118,220.40 : x
  2. Step 2: Convert to fraction form
    177,706.80/266,122.80 = 118,220.40/x
  3. Step 3: Cross multiply
    177,706.80x = 266,122.80 × 118,220.40
  4. Step 4: Simplify right side
    177,706.80x = 31,461,143,865.12
  5. Step 5: Solve for x
    x = 31,461,143,865.12/177,706.80
  6. Step 6: Final answer
    x = 177,039.62

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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.