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Finding the Fourth Proportional to 268,036.55, 403,981.46 and 231,043.11

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Solution

The fourth proportional to 268,036.55, 403,981.46 and 231,043.11 is: 348,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,036.55 : 403,981.46 = 231,043.11 : x
  2. Step 2: Convert to fraction form
    268,036.55/403,981.46 = 231,043.11/x
  3. Step 3: Cross multiply
    268,036.55x = 403,981.46 × 231,043.11
  4. Step 4: Simplify right side
    268,036.55x = 93,337,133,478.35
  5. Step 5: Solve for x
    x = 93,337,133,478.35/268,036.55
  6. Step 6: Final answer
    x = 348,225.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.