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Finding the Fourth Proportional to 117,693.28, 176,617.68 and 55,368.64

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Solution

The fourth proportional to 117,693.28, 176,617.68 and 55,368.64 is: 83,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,693.28 : 176,617.68 = 55,368.64 : x
  2. Step 2: Convert to fraction form
    117,693.28/176,617.68 = 55,368.64/x
  3. Step 3: Cross multiply
    117,693.28x = 176,617.68 × 55,368.64
  4. Step 4: Simplify right side
    117,693.28x = 9,779,080,741.56
  5. Step 5: Solve for x
    x = 9,779,080,741.56/117,693.28
  6. Step 6: Final answer
    x = 83,089.54

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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.