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Finding the Fourth Proportional to 176,888.20, 243,690.54 and 123,080.68

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Solution

The fourth proportional to 176,888.20, 243,690.54 and 123,080.68 is: 169,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,888.20 : 243,690.54 = 123,080.68 : x
  2. Step 2: Convert to fraction form
    176,888.20/243,690.54 = 123,080.68/x
  3. Step 3: Cross multiply
    176,888.20x = 243,690.54 × 123,080.68
  4. Step 4: Simplify right side
    176,888.20x = 29,993,597,372.77
  5. Step 5: Solve for x
    x = 29,993,597,372.77/176,888.20
  6. Step 6: Final answer
    x = 169,562.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.