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Finding the Fourth Proportional to 177,570.40, 266,506.80 and 72,464.80

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Solution

The fourth proportional to 177,570.40, 266,506.80 and 72,464.80 is: 108,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,570.40 : 266,506.80 = 72,464.80 : x
  2. Step 2: Convert to fraction form
    177,570.40/266,506.80 = 72,464.80/x
  3. Step 3: Cross multiply
    177,570.40x = 266,506.80 × 72,464.80
  4. Step 4: Simplify right side
    177,570.40x = 19,312,361,960.64
  5. Step 5: Solve for x
    x = 19,312,361,960.64/177,570.40
  6. Step 6: Final answer
    x = 108,758.90

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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.