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Finding the Fourth Proportional to 177,940.90, 266,911.35 and 166,276.90

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Solution

The fourth proportional to 177,940.90, 266,911.35 and 166,276.90 is: 249,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,940.90 : 266,911.35 = 166,276.90 : x
  2. Step 2: Convert to fraction form
    177,940.90/266,911.35 = 166,276.90/x
  3. Step 3: Cross multiply
    177,940.90x = 266,911.35 × 166,276.90
  4. Step 4: Simplify right side
    177,940.90x = 44,381,191,852.82
  5. Step 5: Solve for x
    x = 44,381,191,852.82/177,940.90
  6. Step 6: Final answer
    x = 249,415.35

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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.