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Finding the Fourth Proportional to 228,164.31, 314,740.35 and 132,660.45

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Solution

The fourth proportional to 228,164.31, 314,740.35 and 132,660.45 is: 182,997.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,164.31 : 314,740.35 = 132,660.45 : x
  2. Step 2: Convert to fraction form
    228,164.31/314,740.35 = 132,660.45/x
  3. Step 3: Cross multiply
    228,164.31x = 314,740.35 × 132,660.45
  4. Step 4: Simplify right side
    228,164.31x = 41,753,596,464.16
  5. Step 5: Solve for x
    x = 41,753,596,464.16/228,164.31
  6. Step 6: Final answer
    x = 182,997.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.