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Finding the Fourth Proportional to 117,889.32, 176,835.84 and 65,630.96

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Solution

The fourth proportional to 117,889.32, 176,835.84 and 65,630.96 is: 98,447.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,889.32 : 176,835.84 = 65,630.96 : x
  2. Step 2: Convert to fraction form
    117,889.32/176,835.84 = 65,630.96/x
  3. Step 3: Cross multiply
    117,889.32x = 176,835.84 × 65,630.96
  4. Step 4: Simplify right side
    117,889.32x = 11,605,905,941.61
  5. Step 5: Solve for x
    x = 11,605,905,941.61/117,889.32
  6. Step 6: Final answer
    x = 98,447.48

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1.5x scale

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.