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Finding the Fourth Proportional to 93,751.60, 129,340.20 and 57,879.36

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Solution

The fourth proportional to 93,751.60, 129,340.20 and 57,879.36 is: 79,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,751.60 : 129,340.20 = 57,879.36 : x
  2. Step 2: Convert to fraction form
    93,751.60/129,340.20 = 57,879.36/x
  3. Step 3: Cross multiply
    93,751.60x = 129,340.20 × 57,879.36
  4. Step 4: Simplify right side
    93,751.60x = 7,486,127,998.27
  5. Step 5: Solve for x
    x = 7,486,127,998.27/93,751.60
  6. Step 6: Final answer
    x = 79,850.67

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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.