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Finding the Fourth Proportional to 157,216.64, 217,032.08 and 92,665.53

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Solution

The fourth proportional to 157,216.64, 217,032.08 and 92,665.53 is: 127,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,216.64 : 217,032.08 = 92,665.53 : x
  2. Step 2: Convert to fraction form
    157,216.64/217,032.08 = 92,665.53/x
  3. Step 3: Cross multiply
    157,216.64x = 217,032.08 × 92,665.53
  4. Step 4: Simplify right side
    157,216.64x = 20,111,392,256.87
  5. Step 5: Solve for x
    x = 20,111,392,256.87/157,216.64
  6. Step 6: Final answer
    x = 127,921.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.