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Finding the Fourth Proportional to 121,915.98, 182,893.47 and 37,656.33

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Solution

The fourth proportional to 121,915.98, 182,893.47 and 37,656.33 is: 56,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,915.98 : 182,893.47 = 37,656.33 : x
  2. Step 2: Convert to fraction form
    121,915.98/182,893.47 = 37,656.33/x
  3. Step 3: Cross multiply
    121,915.98x = 182,893.47 × 37,656.33
  4. Step 4: Simplify right side
    121,915.98x = 6,887,096,861.17
  5. Step 5: Solve for x
    x = 6,887,096,861.17/121,915.98
  6. Step 6: Final answer
    x = 56,490.52

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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.