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Finding the Fourth Proportional to 115,666.40, 173,240.40 and 94,930.40

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Solution

The fourth proportional to 115,666.40, 173,240.40 and 94,930.40 is: 142,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,666.40 : 173,240.40 = 94,930.40 : x
  2. Step 2: Convert to fraction form
    115,666.40/173,240.40 = 94,930.40/x
  3. Step 3: Cross multiply
    115,666.40x = 173,240.40 × 94,930.40
  4. Step 4: Simplify right side
    115,666.40x = 16,445,780,468.16
  5. Step 5: Solve for x
    x = 16,445,780,468.16/115,666.40
  6. Step 6: Final answer
    x = 142,182.87

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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.