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Finding the Fourth Proportional to 117,877.64, 162,693.56 and 66,895.12

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Solution

The fourth proportional to 117,877.64, 162,693.56 and 66,895.12 is: 92,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,877.64 : 162,693.56 = 66,895.12 : x
  2. Step 2: Convert to fraction form
    117,877.64/162,693.56 = 66,895.12/x
  3. Step 3: Cross multiply
    117,877.64x = 162,693.56 × 66,895.12
  4. Step 4: Simplify right side
    117,877.64x = 10,883,405,219.43
  5. Step 5: Solve for x
    x = 10,883,405,219.43/117,877.64
  6. Step 6: Final answer
    x = 92,327.99

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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.