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Finding the Fourth Proportional to 117,457.61, 176,184.88 and 28,711.89

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Solution

The fourth proportional to 117,457.61, 176,184.88 and 28,711.89 is: 43,067.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,457.61 : 176,184.88 = 28,711.89 : x
  2. Step 2: Convert to fraction form
    117,457.61/176,184.88 = 28,711.89/x
  3. Step 3: Cross multiply
    117,457.61x = 176,184.88 × 28,711.89
  4. Step 4: Simplify right side
    117,457.61x = 5,058,600,822.44
  5. Step 5: Solve for x
    x = 5,058,600,822.44/117,457.61
  6. Step 6: Final answer
    x = 43,067.46

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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.