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Finding the Fourth Proportional to 164,554.60, 246,774.30 and 85,642.60

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Solution

The fourth proportional to 164,554.60, 246,774.30 and 85,642.60 is: 128,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,554.60 : 246,774.30 = 85,642.60 : x
  2. Step 2: Convert to fraction form
    164,554.60/246,774.30 = 85,642.60/x
  3. Step 3: Cross multiply
    164,554.60x = 246,774.30 × 85,642.60
  4. Step 4: Simplify right side
    164,554.60x = 21,134,392,665.18
  5. Step 5: Solve for x
    x = 21,134,392,665.18/164,554.60
  6. Step 6: Final answer
    x = 128,433.92

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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.