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Finding the Fourth Proportional to 238,612.15, 357,921.06 and 61,114.42

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Solution

The fourth proportional to 238,612.15, 357,921.06 and 61,114.42 is: 91,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,612.15 : 357,921.06 = 61,114.42 : x
  2. Step 2: Convert to fraction form
    238,612.15/357,921.06 = 61,114.42/x
  3. Step 3: Cross multiply
    238,612.15x = 357,921.06 × 61,114.42
  4. Step 4: Simplify right side
    238,612.15x = 21,874,135,892.51
  5. Step 5: Solve for x
    x = 21,874,135,892.51/238,612.15
  6. Step 6: Final answer
    x = 91,672.35

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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.