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Finding the Fourth Proportional to 117,017.40, 175,525.72 and 28,270.90

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Solution

The fourth proportional to 117,017.40, 175,525.72 and 28,270.90 is: 42,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,017.40 : 175,525.72 = 28,270.90 : x
  2. Step 2: Convert to fraction form
    117,017.40/175,525.72 = 28,270.90/x
  3. Step 3: Cross multiply
    117,017.40x = 175,525.72 × 28,270.90
  4. Step 4: Simplify right side
    117,017.40x = 4,962,270,783.73
  5. Step 5: Solve for x
    x = 4,962,270,783.73/117,017.40
  6. Step 6: Final answer
    x = 42,406.26

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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.