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Finding the Fourth Proportional to 172,914.64, 238,466.96 and 147,512.64

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Solution

The fourth proportional to 172,914.64, 238,466.96 and 147,512.64 is: 203,435.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,914.64 : 238,466.96 = 147,512.64 : x
  2. Step 2: Convert to fraction form
    172,914.64/238,466.96 = 147,512.64/x
  3. Step 3: Cross multiply
    172,914.64x = 238,466.96 × 147,512.64
  4. Step 4: Simplify right side
    172,914.64x = 35,176,890,822.37
  5. Step 5: Solve for x
    x = 35,176,890,822.37/172,914.64
  6. Step 6: Final answer
    x = 203,435.01

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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.