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Finding the Fourth Proportional to 118,615.53, 163,691.46 and 64,905.24

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Solution

The fourth proportional to 118,615.53, 163,691.46 and 64,905.24 is: 89,570.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,615.53 : 163,691.46 = 64,905.24 : x
  2. Step 2: Convert to fraction form
    118,615.53/163,691.46 = 64,905.24/x
  3. Step 3: Cross multiply
    118,615.53x = 163,691.46 × 64,905.24
  4. Step 4: Simplify right side
    118,615.53x = 10,624,433,497.25
  5. Step 5: Solve for x
    x = 10,624,433,497.25/118,615.53
  6. Step 6: Final answer
    x = 89,570.34

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1.5x scale

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.