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Finding the Fourth Proportional to 325,172.64, 487,709.70 and 88,533.96

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Solution

The fourth proportional to 325,172.64, 487,709.70 and 88,533.96 is: 132,787.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,172.64 : 487,709.70 = 88,533.96 : x
  2. Step 2: Convert to fraction form
    325,172.64/487,709.70 = 88,533.96/x
  3. Step 3: Cross multiply
    325,172.64x = 487,709.70 × 88,533.96
  4. Step 4: Simplify right side
    325,172.64x = 43,178,871,071.41
  5. Step 5: Solve for x
    x = 43,178,871,071.41/325,172.64
  6. Step 6: Final answer
    x = 132,787.53

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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.