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Finding the Fourth Proportional to 117,410.60, 162,026.64 and 66,422.25

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Solution

The fourth proportional to 117,410.60, 162,026.64 and 66,422.25 is: 91,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,410.60 : 162,026.64 = 66,422.25 : x
  2. Step 2: Convert to fraction form
    117,410.60/162,026.64 = 66,422.25/x
  3. Step 3: Cross multiply
    117,410.60x = 162,026.64 × 66,422.25
  4. Step 4: Simplify right side
    117,410.60x = 10,762,173,988.74
  5. Step 5: Solve for x
    x = 10,762,173,988.74/117,410.60
  6. Step 6: Final answer
    x = 91,662.72

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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.