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Finding the Fourth Proportional to 176,903.20, 243,711.12 and 123,095.80

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Solution

The fourth proportional to 176,903.20, 243,711.12 and 123,095.80 is: 169,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,903.20 : 243,711.12 = 123,095.80 : x
  2. Step 2: Convert to fraction form
    176,903.20/243,711.12 = 123,095.80/x
  3. Step 3: Cross multiply
    176,903.20x = 243,711.12 × 123,095.80
  4. Step 4: Simplify right side
    176,903.20x = 29,999,815,285.30
  5. Step 5: Solve for x
    x = 29,999,815,285.30/176,903.20
  6. Step 6: Final answer
    x = 169,583.23

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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.