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Finding the Fourth Proportional to 148,662.08, 205,159.88 and 84,999.86

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Solution

The fourth proportional to 148,662.08, 205,159.88 and 84,999.86 is: 117,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,662.08 : 205,159.88 = 84,999.86 : x
  2. Step 2: Convert to fraction form
    148,662.08/205,159.88 = 84,999.86/x
  3. Step 3: Cross multiply
    148,662.08x = 205,159.88 × 84,999.86
  4. Step 4: Simplify right side
    148,662.08x = 17,438,560,652.62
  5. Step 5: Solve for x
    x = 17,438,560,652.62/148,662.08
  6. Step 6: Final answer
    x = 117,303.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.