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Finding the Fourth Proportional to 172,492.02, 238,038.87 and 97,040.52

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Solution

The fourth proportional to 172,492.02, 238,038.87 and 97,040.52 is: 133,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,492.02 : 238,038.87 = 97,040.52 : x
  2. Step 2: Convert to fraction form
    172,492.02/238,038.87 = 97,040.52/x
  3. Step 3: Cross multiply
    172,492.02x = 238,038.87 × 97,040.52
  4. Step 4: Simplify right side
    172,492.02x = 23,099,415,725.01
  5. Step 5: Solve for x
    x = 23,099,415,725.01/172,492.02
  6. Step 6: Final answer
    x = 133,915.85

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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.