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Finding the Fourth Proportional to 93,096.67, 128,070.26 and 81,559.62

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Solution

The fourth proportional to 93,096.67, 128,070.26 and 81,559.62 is: 112,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,096.67 : 128,070.26 = 81,559.62 : x
  2. Step 2: Convert to fraction form
    93,096.67/128,070.26 = 81,559.62/x
  3. Step 3: Cross multiply
    93,096.67x = 128,070.26 × 81,559.62
  4. Step 4: Simplify right side
    93,096.67x = 10,445,361,738.90
  5. Step 5: Solve for x
    x = 10,445,361,738.90/93,096.67
  6. Step 6: Final answer
    x = 112,199.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.