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Finding the Fourth Proportional to 177,439.80, 266,159.70 and 161,110.20

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Solution

The fourth proportional to 177,439.80, 266,159.70 and 161,110.20 is: 241,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,439.80 : 266,159.70 = 161,110.20 : x
  2. Step 2: Convert to fraction form
    177,439.80/266,159.70 = 161,110.20/x
  3. Step 3: Cross multiply
    177,439.80x = 266,159.70 × 161,110.20
  4. Step 4: Simplify right side
    177,439.80x = 42,881,042,498.94
  5. Step 5: Solve for x
    x = 42,881,042,498.94/177,439.80
  6. Step 6: Final answer
    x = 241,665.30

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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.