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Finding the Fourth Proportional to 66,925.32, 100,254.12 and 40,256.60

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Solution

The fourth proportional to 66,925.32, 100,254.12 and 40,256.60 is: 60,304.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,925.32 : 100,254.12 = 40,256.60 : x
  2. Step 2: Convert to fraction form
    66,925.32/100,254.12 = 40,256.60/x
  3. Step 3: Cross multiply
    66,925.32x = 100,254.12 × 40,256.60
  4. Step 4: Simplify right side
    66,925.32x = 4,035,889,505.92
  5. Step 5: Solve for x
    x = 4,035,889,505.92/66,925.32
  6. Step 6: Final answer
    x = 60,304.37

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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.