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Finding the Fourth Proportional to 92,321.60, 138,383.52 and 65,946.32

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Solution

The fourth proportional to 92,321.60, 138,383.52 and 65,946.32 is: 98,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.60 : 138,383.52 = 65,946.32 : x
  2. Step 2: Convert to fraction form
    92,321.60/138,383.52 = 65,946.32/x
  3. Step 3: Cross multiply
    92,321.60x = 138,383.52 × 65,946.32
  4. Step 4: Simplify right side
    92,321.60x = 9,125,883,892.65
  5. Step 5: Solve for x
    x = 9,125,883,892.65/92,321.60
  6. Step 6: Final answer
    x = 98,848.85

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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.