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Finding the Fourth Proportional to 151,976.60, 228,030.50 and 81,841.94

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Solution

The fourth proportional to 151,976.60, 228,030.50 and 81,841.94 is: 122,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,976.60 : 228,030.50 = 81,841.94 : x
  2. Step 2: Convert to fraction form
    151,976.60/228,030.50 = 81,841.94/x
  3. Step 3: Cross multiply
    151,976.60x = 228,030.50 × 81,841.94
  4. Step 4: Simplify right side
    151,976.60x = 18,662,458,499.17
  5. Step 5: Solve for x
    x = 18,662,458,499.17/151,976.60
  6. Step 6: Final answer
    x = 122,798.24

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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.