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Finding the Fourth Proportional to 93,618.40, 140,427.60 and 82,537.60

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Solution

The fourth proportional to 93,618.40, 140,427.60 and 82,537.60 is: 123,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,618.40 : 140,427.60 = 82,537.60 : x
  2. Step 2: Convert to fraction form
    93,618.40/140,427.60 = 82,537.60/x
  3. Step 3: Cross multiply
    93,618.40x = 140,427.60 × 82,537.60
  4. Step 4: Simplify right side
    93,618.40x = 11,590,557,077.76
  5. Step 5: Solve for x
    x = 11,590,557,077.76/93,618.40
  6. Step 6: Final answer
    x = 123,806.40

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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.