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Finding the Fourth Proportional to 223,013.40, 334,422.90 and 89,849.40

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Solution

The fourth proportional to 223,013.40, 334,422.90 and 89,849.40 is: 134,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,013.40 : 334,422.90 = 89,849.40 : x
  2. Step 2: Convert to fraction form
    223,013.40/334,422.90 = 89,849.40/x
  3. Step 3: Cross multiply
    223,013.40x = 334,422.90 × 89,849.40
  4. Step 4: Simplify right side
    223,013.40x = 30,047,696,911.26
  5. Step 5: Solve for x
    x = 30,047,696,911.26/223,013.40
  6. Step 6: Final answer
    x = 134,734.94

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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.