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Finding the Fourth Proportional to 223,689.62, 308,574.05 and 132,981.07

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Solution

The fourth proportional to 223,689.62, 308,574.05 and 132,981.07 is: 183,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,689.62 : 308,574.05 = 132,981.07 : x
  2. Step 2: Convert to fraction form
    223,689.62/308,574.05 = 132,981.07/x
  3. Step 3: Cross multiply
    223,689.62x = 308,574.05 × 132,981.07
  4. Step 4: Simplify right side
    223,689.62x = 41,034,505,135.46
  5. Step 5: Solve for x
    x = 41,034,505,135.46/223,689.62
  6. Step 6: Final answer
    x = 183,443.94

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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.