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Finding the Fourth Proportional to 128,795.60, 193,233.90 and 62,237.90

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Solution

The fourth proportional to 128,795.60, 193,233.90 and 62,237.90 is: 93,376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,795.60 : 193,233.90 = 62,237.90 : x
  2. Step 2: Convert to fraction form
    128,795.60/193,233.90 = 62,237.90/x
  3. Step 3: Cross multiply
    128,795.60x = 193,233.90 × 62,237.90
  4. Step 4: Simplify right side
    128,795.60x = 12,026,472,144.81
  5. Step 5: Solve for x
    x = 12,026,472,144.81/128,795.60
  6. Step 6: Final answer
    x = 93,376.42

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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.