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Finding the Fourth Proportional to 114,326.40, 171,489.60 and 58,339.20

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Solution

The fourth proportional to 114,326.40, 171,489.60 and 58,339.20 is: 87,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,326.40 : 171,489.60 = 58,339.20 : x
  2. Step 2: Convert to fraction form
    114,326.40/171,489.60 = 58,339.20/x
  3. Step 3: Cross multiply
    114,326.40x = 171,489.60 × 58,339.20
  4. Step 4: Simplify right side
    114,326.40x = 10,004,566,072.32
  5. Step 5: Solve for x
    x = 10,004,566,072.32/114,326.40
  6. Step 6: Final answer
    x = 87,508.80

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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.