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Finding the Fourth Proportional to 117,865.25, 162,657.48 and 64,153.74

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Solution

The fourth proportional to 117,865.25, 162,657.48 and 64,153.74 is: 88,534.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,865.25 : 162,657.48 = 64,153.74 : x
  2. Step 2: Convert to fraction form
    117,865.25/162,657.48 = 64,153.74/x
  3. Step 3: Cross multiply
    117,865.25x = 162,657.48 × 64,153.74
  4. Step 4: Simplify right side
    117,865.25x = 10,435,085,680.98
  5. Step 5: Solve for x
    x = 10,435,085,680.98/117,865.25
  6. Step 6: Final answer
    x = 88,534.03

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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.