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Finding the Fourth Proportional to 117,888.32, 176,834.34 and 65,629.96

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Solution

The fourth proportional to 117,888.32, 176,834.34 and 65,629.96 is: 98,445.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.32 : 176,834.34 = 65,629.96 : x
  2. Step 2: Convert to fraction form
    117,888.32/176,834.34 = 65,629.96/x
  3. Step 3: Cross multiply
    117,888.32x = 176,834.34 × 65,629.96
  4. Step 4: Simplify right side
    117,888.32x = 11,605,630,660.83
  5. Step 5: Solve for x
    x = 11,605,630,660.83/117,888.32
  6. Step 6: Final answer
    x = 98,445.98

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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.