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Finding the Fourth Proportional to 238,998.89, 357,982.28 and 112,449.50

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Solution

The fourth proportional to 238,998.89, 357,982.28 and 112,449.50 is: 168,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,998.89 : 357,982.28 = 112,449.50 : x
  2. Step 2: Convert to fraction form
    238,998.89/357,982.28 = 112,449.50/x
  3. Step 3: Cross multiply
    238,998.89x = 357,982.28 × 112,449.50
  4. Step 4: Simplify right side
    238,998.89x = 40,254,927,385.13
  5. Step 5: Solve for x
    x = 40,254,927,385.13/238,998.89
  6. Step 6: Final answer
    x = 168,431.44

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1.5x scale

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.