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Finding the Fourth Proportional to 128,548.89, 192,948.02 and 62,035.84

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Solution

The fourth proportional to 128,548.89, 192,948.02 and 62,035.84 is: 93,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,548.89 : 192,948.02 = 62,035.84 : x
  2. Step 2: Convert to fraction form
    128,548.89/192,948.02 = 62,035.84/x
  3. Step 3: Cross multiply
    128,548.89x = 192,948.02 × 62,035.84
  4. Step 4: Simplify right side
    128,548.89x = 11,969,692,497.04
  5. Step 5: Solve for x
    x = 11,969,692,497.04/128,548.89
  6. Step 6: Final answer
    x = 93,113.93

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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.