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Finding the Fourth Proportional to 102,550.60, 153,825.90 and 88,726.60

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Solution

The fourth proportional to 102,550.60, 153,825.90 and 88,726.60 is: 133,089.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,550.60 : 153,825.90 = 88,726.60 : x
  2. Step 2: Convert to fraction form
    102,550.60/153,825.90 = 88,726.60/x
  3. Step 3: Cross multiply
    102,550.60x = 153,825.90 × 88,726.60
  4. Step 4: Simplify right side
    102,550.60x = 13,648,449,098.94
  5. Step 5: Solve for x
    x = 13,648,449,098.94/102,550.60
  6. Step 6: Final answer
    x = 133,089.90

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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.