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Finding the Fourth Proportional to 93,743.70, 140,615.55 and 86,526.60

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Solution

The fourth proportional to 93,743.70, 140,615.55 and 86,526.60 is: 129,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,743.70 : 140,615.55 = 86,526.60 : x
  2. Step 2: Convert to fraction form
    93,743.70/140,615.55 = 86,526.60/x
  3. Step 3: Cross multiply
    93,743.70x = 140,615.55 × 86,526.60
  4. Step 4: Simplify right side
    93,743.70x = 12,166,985,448.63
  5. Step 5: Solve for x
    x = 12,166,985,448.63/93,743.70
  6. Step 6: Final answer
    x = 129,789.90

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Similar ratio
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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.