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Finding the Fourth Proportional to 151,857.70, 227,851.35 and 72,931.30

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Solution

The fourth proportional to 151,857.70, 227,851.35 and 72,931.30 is: 109,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,857.70 : 227,851.35 = 72,931.30 : x
  2. Step 2: Convert to fraction form
    151,857.70/227,851.35 = 72,931.30/x
  3. Step 3: Cross multiply
    151,857.70x = 227,851.35 × 72,931.30
  4. Step 4: Simplify right side
    151,857.70x = 16,617,495,162.26
  5. Step 5: Solve for x
    x = 16,617,495,162.26/151,857.70
  6. Step 6: Final answer
    x = 109,428.07

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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.