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Finding the Fourth Proportional to 117,145.30, 175,691.60 and 53,904.76

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Solution

The fourth proportional to 117,145.30, 175,691.60 and 53,904.76 is: 80,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,145.30 : 175,691.60 = 53,904.76 : x
  2. Step 2: Convert to fraction form
    117,145.30/175,691.60 = 53,904.76/x
  3. Step 3: Cross multiply
    117,145.30x = 175,691.60 × 53,904.76
  4. Step 4: Simplify right side
    117,145.30x = 9,470,613,532.02
  5. Step 5: Solve for x
    x = 9,470,613,532.02/117,145.30
  6. Step 6: Final answer
    x = 80,845.01

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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.