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Finding the Fourth Proportional to 121,693.84, 182,543.64 and 38,588.56

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Solution

The fourth proportional to 121,693.84, 182,543.64 and 38,588.56 is: 57,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,693.84 : 182,543.64 = 38,588.56 : x
  2. Step 2: Convert to fraction form
    121,693.84/182,543.64 = 38,588.56/x
  3. Step 3: Cross multiply
    121,693.84x = 182,543.64 × 38,588.56
  4. Step 4: Simplify right side
    121,693.84x = 7,044,096,204.76
  5. Step 5: Solve for x
    x = 7,044,096,204.76/121,693.84
  6. Step 6: Final answer
    x = 57,883.75

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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.