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Finding the Fourth Proportional to 128,601.60, 193,026.90 and 62,088.40

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Solution

The fourth proportional to 128,601.60, 193,026.90 and 62,088.40 is: 93,192.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,601.60 : 193,026.90 = 62,088.40 : x
  2. Step 2: Convert to fraction form
    128,601.60/193,026.90 = 62,088.40/x
  3. Step 3: Cross multiply
    128,601.60x = 193,026.90 × 62,088.40
  4. Step 4: Simplify right side
    128,601.60x = 11,984,731,377.96
  5. Step 5: Solve for x
    x = 11,984,731,377.96/128,601.60
  6. Step 6: Final answer
    x = 93,192.71

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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.