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Finding the Fourth Proportional to 93,668.70, 140,503.05 and 83,827.20

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Solution

The fourth proportional to 93,668.70, 140,503.05 and 83,827.20 is: 125,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,668.70 : 140,503.05 = 83,827.20 : x
  2. Step 2: Convert to fraction form
    93,668.70/140,503.05 = 83,827.20/x
  3. Step 3: Cross multiply
    93,668.70x = 140,503.05 × 83,827.20
  4. Step 4: Simplify right side
    93,668.70x = 11,777,977,272.96
  5. Step 5: Solve for x
    x = 11,777,977,272.96/93,668.70
  6. Step 6: Final answer
    x = 125,740.80

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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.