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Finding the Fourth Proportional to 177,661.20, 266,491.80 and 118,304.40

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Solution

The fourth proportional to 177,661.20, 266,491.80 and 118,304.40 is: 177,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,661.20 : 266,491.80 = 118,304.40 : x
  2. Step 2: Convert to fraction form
    177,661.20/266,491.80 = 118,304.40/x
  3. Step 3: Cross multiply
    177,661.20x = 266,491.80 × 118,304.40
  4. Step 4: Simplify right side
    177,661.20x = 31,527,152,503.92
  5. Step 5: Solve for x
    x = 31,527,152,503.92/177,661.20
  6. Step 6: Final answer
    x = 177,456.60

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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.