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Finding the Fourth Proportional to 117,187.16, 175,779.42 and 28,441.64

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Solution

The fourth proportional to 117,187.16, 175,779.42 and 28,441.64 is: 42,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,187.16 : 175,779.42 = 28,441.64 : x
  2. Step 2: Convert to fraction form
    117,187.16/175,779.42 = 28,441.64/x
  3. Step 3: Cross multiply
    117,187.16x = 175,779.42 × 28,441.64
  4. Step 4: Simplify right side
    117,187.16x = 4,999,454,983.05
  5. Step 5: Solve for x
    x = 4,999,454,983.05/117,187.16
  6. Step 6: Final answer
    x = 42,662.14

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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.