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Finding the Fourth Proportional to 117,875.63, 162,690.79 and 66,893.11

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Solution

The fourth proportional to 117,875.63, 162,690.79 and 66,893.11 is: 92,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,875.63 : 162,690.79 = 66,893.11 : x
  2. Step 2: Convert to fraction form
    117,875.63/162,690.79 = 66,893.11/x
  3. Step 3: Cross multiply
    117,875.63x = 162,690.79 × 66,893.11
  4. Step 4: Simplify right side
    117,875.63x = 10,882,892,911.46
  5. Step 5: Solve for x
    x = 10,882,892,911.46/117,875.63
  6. Step 6: Final answer
    x = 92,325.22

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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.