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Finding the Fourth Proportional to 93,579.86, 129,103.58 and 57,707.60

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Solution

The fourth proportional to 93,579.86, 129,103.58 and 57,707.60 is: 79,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,579.86 : 129,103.58 = 57,707.60 : x
  2. Step 2: Convert to fraction form
    93,579.86/129,103.58 = 57,707.60/x
  3. Step 3: Cross multiply
    93,579.86x = 129,103.58 × 57,707.60
  4. Step 4: Simplify right side
    93,579.86x = 7,450,256,819.15
  5. Step 5: Solve for x
    x = 7,450,256,819.15/93,579.86
  6. Step 6: Final answer
    x = 79,613.90

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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.