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Finding the Fourth Proportional to 142,762.92, 197,004.60 and 79,096.92

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Solution

The fourth proportional to 142,762.92, 197,004.60 and 79,096.92 is: 109,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,762.92 : 197,004.60 = 79,096.92 : x
  2. Step 2: Convert to fraction form
    142,762.92/197,004.60 = 79,096.92/x
  3. Step 3: Cross multiply
    142,762.92x = 197,004.60 × 79,096.92
  4. Step 4: Simplify right side
    142,762.92x = 15,582,457,085.83
  5. Step 5: Solve for x
    x = 15,582,457,085.83/142,762.92
  6. Step 6: Final answer
    x = 109,149.19

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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.