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Finding the Fourth Proportional to 351,329.40, 526,915.20 and 161,607.53

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Solution

The fourth proportional to 351,329.40, 526,915.20 and 161,607.53 is: 242,375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,329.40 : 526,915.20 = 161,607.53 : x
  2. Step 2: Convert to fraction form
    351,329.40/526,915.20 = 161,607.53/x
  3. Step 3: Cross multiply
    351,329.40x = 526,915.20 × 161,607.53
  4. Step 4: Simplify right side
    351,329.40x = 85,153,463,978.30
  5. Step 5: Solve for x
    x = 85,153,463,978.30/351,329.40
  6. Step 6: Final answer
    x = 242,375.00

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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.