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Finding the Fourth Proportional to 168,955.64, 253,489.76 and 56,646.96

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Solution

The fourth proportional to 168,955.64, 253,489.76 and 56,646.96 is: 84,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,955.64 : 253,489.76 = 56,646.96 : x
  2. Step 2: Convert to fraction form
    168,955.64/253,489.76 = 56,646.96/x
  3. Step 3: Cross multiply
    168,955.64x = 253,489.76 × 56,646.96
  4. Step 4: Simplify right side
    168,955.64x = 14,359,424,295.13
  5. Step 5: Solve for x
    x = 14,359,424,295.13/168,955.64
  6. Step 6: Final answer
    x = 84,989.32

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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.