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Finding the Fourth Proportional to 111,693.60, 167,487.60 and 64,960.80

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Solution

The fourth proportional to 111,693.60, 167,487.60 and 64,960.80 is: 97,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,693.60 : 167,487.60 = 64,960.80 : x
  2. Step 2: Convert to fraction form
    111,693.60/167,487.60 = 64,960.80/x
  3. Step 3: Cross multiply
    111,693.60x = 167,487.60 × 64,960.80
  4. Step 4: Simplify right side
    111,693.60x = 10,880,128,486.08
  5. Step 5: Solve for x
    x = 10,880,128,486.08/111,693.60
  6. Step 6: Final answer
    x = 97,410.49

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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.