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Finding the Fourth Proportional to 223,397.80, 335,096.70 and 98,981.80

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Solution

The fourth proportional to 223,397.80, 335,096.70 and 98,981.80 is: 148,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,397.80 : 335,096.70 = 98,981.80 : x
  2. Step 2: Convert to fraction form
    223,397.80/335,096.70 = 98,981.80/x
  3. Step 3: Cross multiply
    223,397.80x = 335,096.70 × 98,981.80
  4. Step 4: Simplify right side
    223,397.80x = 33,168,474,540.06
  5. Step 5: Solve for x
    x = 33,168,474,540.06/223,397.80
  6. Step 6: Final answer
    x = 148,472.70

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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.