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Finding the Fourth Proportional to 142,549.39, 213,676.45 and 117,324.40

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Solution

The fourth proportional to 142,549.39, 213,676.45 and 117,324.40 is: 175,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,549.39 : 213,676.45 = 117,324.40 : x
  2. Step 2: Convert to fraction form
    142,549.39/213,676.45 = 117,324.40/x
  3. Step 3: Cross multiply
    142,549.39x = 213,676.45 × 117,324.40
  4. Step 4: Simplify right side
    142,549.39x = 25,069,460,756.19
  5. Step 5: Solve for x
    x = 25,069,460,756.19/142,549.39
  6. Step 6: Final answer
    x = 175,865.09

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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.