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Finding the Fourth Proportional to 117,141.64, 175,710.91 and 28,395.95

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Solution

The fourth proportional to 117,141.64, 175,710.91 and 28,395.95 is: 42,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,141.64 : 175,710.91 = 28,395.95 : x
  2. Step 2: Convert to fraction form
    117,141.64/175,710.91 = 28,395.95/x
  3. Step 3: Cross multiply
    117,141.64x = 175,710.91 × 28,395.95
  4. Step 4: Simplify right side
    117,141.64x = 4,989,477,704.55
  5. Step 5: Solve for x
    x = 4,989,477,704.55/117,141.64
  6. Step 6: Final answer
    x = 42,593.54

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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.