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Finding the Fourth Proportional to 523,996.61, 786,095.35 and 168,915.29

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Solution

The fourth proportional to 523,996.61, 786,095.35 and 168,915.29 is: 253,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,996.61 : 786,095.35 = 168,915.29 : x
  2. Step 2: Convert to fraction form
    523,996.61/786,095.35 = 168,915.29/x
  3. Step 3: Cross multiply
    523,996.61x = 786,095.35 × 168,915.29
  4. Step 4: Simplify right side
    523,996.61x = 132,783,519,660.14
  5. Step 5: Solve for x
    x = 132,783,519,660.14/523,996.61
  6. Step 6: Final answer
    x = 253,405.31

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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.