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Finding the Fourth Proportional to 93,050.40, 140,081.76 and 84,783.60

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Solution

The fourth proportional to 93,050.40, 140,081.76 and 84,783.60 is: 127,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,050.40 : 140,081.76 = 84,783.60 : x
  2. Step 2: Convert to fraction form
    93,050.40/140,081.76 = 84,783.60/x
  3. Step 3: Cross multiply
    93,050.40x = 140,081.76 × 84,783.60
  4. Step 4: Simplify right side
    93,050.40x = 11,876,635,907.14
  5. Step 5: Solve for x
    x = 11,876,635,907.14/93,050.40
  6. Step 6: Final answer
    x = 127,636.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.