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Finding the Fourth Proportional to 154,892.66, 232,363.28 and 66,146.63

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Solution

The fourth proportional to 154,892.66, 232,363.28 and 66,146.63 is: 99,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,892.66 : 232,363.28 = 66,146.63 : x
  2. Step 2: Convert to fraction form
    154,892.66/232,363.28 = 66,146.63/x
  3. Step 3: Cross multiply
    154,892.66x = 232,363.28 × 66,146.63
  4. Step 4: Simplify right side
    154,892.66x = 15,370,046,911.30
  5. Step 5: Solve for x
    x = 15,370,046,911.30/154,892.66
  6. Step 6: Final answer
    x = 99,230.31

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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.