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Finding the Fourth Proportional to 168,688.64, 253,071.36 and 57,873.92

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Solution

The fourth proportional to 168,688.64, 253,071.36 and 57,873.92 is: 86,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,688.64 : 253,071.36 = 57,873.92 : x
  2. Step 2: Convert to fraction form
    168,688.64/253,071.36 = 57,873.92/x
  3. Step 3: Cross multiply
    168,688.64x = 253,071.36 × 57,873.92
  4. Step 4: Simplify right side
    168,688.64x = 14,646,231,642.93
  5. Step 5: Solve for x
    x = 14,646,231,642.93/168,688.64
  6. Step 6: Final answer
    x = 86,824.05

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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.