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Finding the Fourth Proportional to 177,534.40, 266,074.80 and 72,234.40

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Solution

The fourth proportional to 177,534.40, 266,074.80 and 72,234.40 is: 108,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,534.40 : 266,074.80 = 72,234.40 : x
  2. Step 2: Convert to fraction form
    177,534.40/266,074.80 = 72,234.40/x
  3. Step 3: Cross multiply
    177,534.40x = 266,074.80 × 72,234.40
  4. Step 4: Simplify right side
    177,534.40x = 19,219,753,533.12
  5. Step 5: Solve for x
    x = 19,219,753,533.12/177,534.40
  6. Step 6: Final answer
    x = 108,259.32

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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.