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Finding the Fourth Proportional to 177,583.40, 266,526.30 and 72,477.80

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Solution

The fourth proportional to 177,583.40, 266,526.30 and 72,477.80 is: 108,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,583.40 : 266,526.30 = 72,477.80 : x
  2. Step 2: Convert to fraction form
    177,583.40/266,526.30 = 72,477.80/x
  3. Step 3: Cross multiply
    177,583.40x = 266,526.30 × 72,477.80
  4. Step 4: Simplify right side
    177,583.40x = 19,317,239,866.14
  5. Step 5: Solve for x
    x = 19,317,239,866.14/177,583.40
  6. Step 6: Final answer
    x = 108,778.41

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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.